Osto vs Tenable: A Simple Comparison for Startups<\/title>\n<meta name=\"description\" content=\"Osto vs Tenable compared. Tenable finds exposures across your assets. 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.osto-cmp .tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}\n<\/style>\n<\/head>\n<body>\n<article class=\"osto-cmp\">\n\n <span class=\"eyebrow\">Comparison<\/span>\n <p class=\"dek\">One hands you a list of what is wrong. The other stops it, fixes it and proves it to an auditor.<\/p>\n\n <div class=\"meta\">\n <span>Osto Team<\/span>\n <span class=\"dot\"><\/span>\n <span>7 min read<\/span>\n <span class=\"dot\"><\/span>\n <span>Platform Comparison<\/span>\n <\/div>\n\n <div class=\"tldr\">\n <h2>TL;DR<\/h2>\n <p class=\"tldr-lead\">Osto vs Tenable, in one line each.<\/p>\n <p><strong>Osto<\/strong> is the security stack and the compliance layer in one platform. Web and API protection, cloud posture, endpoint control, ZTNA, DLP and expert led VAPT are modules Osto runs, and audit evidence comes out of them.<\/p>\n <p><strong>Tenable<\/strong> is an exposure management vendor built on Nessus. Vulnerability scanning across assets, cloud, web apps and identity, priced per asset, producing prioritised findings for a team to act on.<\/p>\n <\/div>\n\n <p class=\"lead-in\">The Osto vs Tenable question is what happens after the scan. Finding vulnerabilities is the easy half. A lean team usually has no shortage of findings and no one to close them, and a buyer does not want your scan output anyway.<\/p>\n\n <div class=\"jump\">\n <h4>On this page<\/h4>\n <ol>\n <li><a href=\"#core\">The core difference<\/a><\/li>\n <li><a href=\"#gap\">The gap Tenable leaves that Osto fills<\/a><\/li>\n <li><a href=\"#table\">What companies actually care about<\/a><\/li>\n <li><a href=\"#who\">Which platform fits your team?<\/a><\/li>\n <li><a href=\"#osto\">Why growing teams pick Osto<\/a><\/li>\n <li><a href=\"#faq\">Common questions<\/a><\/li>\n <\/ol>\n <\/div>\n\n <h2 class=\"sec\" id=\"core\">Osto vs Tenable: the core difference in one line<\/h2>\n <p>Tenable tells you what is exposed. Osto blocks the attack, runs the test your buyer asks for, and files the evidence.<\/p>\n\n <div class=\"cards2\">\n <div class=\"vcard osto\">\n <span class=\"tag\">Osto<\/span>\n <h4>Prevention, testing and proof<\/h4>\n <p>Web and API protection, cloud posture, endpoint and device control, ZTNA and DLP, with expert led VAPT and compliance mapped from the controls Osto runs.<\/p>\n <\/div>\n <div class=\"vcard\">\n <span class=\"tag\">Tenable<\/span>\n <h4>Detection and prioritisation<\/h4>\n <p>Scanning across infrastructure, cloud, web applications and identity, with exposure scoring to rank what to fix first, licensed against the assets you scan.<\/p>\n <\/div>\n <\/div>\n\n <h2 class=\"sec\" id=\"gap\">Osto vs Tenable: the gap Osto fills<\/h2>\n <p>In an Osto vs Tenable comparison this is the decisive point. A scanner has no enforcement layer. It will flag that your API is exposed, and it will not block the request. It will flag a misconfiguration, and it will not remediate it. The <a href=\"https:\/\/www.osto.one\/resources\/soc-2-for-startups\/\">SOC 2 report<\/a> your buyer wants asks which controls operated, not which findings were open.<\/p>\n\n <div class=\"split\">\n <div class=\"sp\">\n <h4>Buy Tenable and you still buy this separately<\/h4>\n <ul>\n <li>A web application firewall to actually block attacks<\/li>\n <li>An endpoint agent and device control<\/li>\n <li>A penetration test, because a scan is not one<\/li>\n <li>A compliance platform to map controls and hold evidence<\/li>\n <li>Security questionnaire responses, done manually<\/li>\n <li>Engineering time to work the findings backlog<\/li>\n <li>Per asset licensing as your infrastructure grows<\/li>\n <\/ul>\n <\/div>\n <div class=\"sp fill\">\n <h4>Buy Osto and this is already included<\/h4>\n <ul>\n <li>Reverse proxy WAAP blocking OWASP Top 10 and bots<\/li>\n <li>Endpoint antimalware, device control and File Access DLP<\/li>\n <li>Expert led VAPT with remediation support and retest<\/li>\n <li>Compliance across 200 plus frameworks<\/li>\n <li>AI security questionnaires from live platform state<\/li>\n <li>CSPM that flags and guides the fix<\/li>\n <li>One platform, no per asset meter<\/li>\n <\/ul>\n <\/div>\n <\/div>\n\n <div class=\"note\">\n <strong>The question that decides it.<\/strong> Most Osto vs Tenable decisions turn on one question. Do you need to know what is wrong, or do you need it closed and evidenced? Visibility is valuable when you have engineers waiting to act on it. Without them, a findings list is a backlog, not a control.\n <\/div>\n\n <h2 class=\"sec\" id=\"table\">Osto vs Tenable: what companies actually care about<\/h2>\n <p>Seven criteria decide most Osto vs Tenable evaluations. Each verdict below is followed by the reason behind it.<\/p>\n <div class=\"tablewrap\">\n <table>\n <thead>\n <tr><th>Criteria<\/th><th class=\"ostocol\">Osto<\/th><th>Tenable<\/th><\/tr>\n <\/thead>\n <tbody>\n <tr><td><strong>Who is it for?<\/strong><\/td><td class=\"ostocol\"><strong>Startups and lean teams.<\/strong><br>No security function required.<\/td><td><strong>Teams who can work a findings queue.<\/strong><br>Output is a prioritised list to action.<\/td><\/tr>\n <tr><td><strong>What does it do?<\/strong><\/td><td class=\"ostocol\"><strong>Prevents, tests and proves.<\/strong><br>Controls run, testing is included, evidence follows.<\/td><td><strong>Finds and ranks.<\/strong><br>Detection and prioritisation, not enforcement.<\/td><\/tr>\n <tr><td><strong>Is the product we ship protected?<\/strong><\/td><td class=\"ostocol\"><strong>Yes, at the edge.<\/strong><br>WAAP with automatic app and API discovery.<\/td><td><strong>Scanned, not protected.<\/strong><br>Web app scanning reports issues, it does not block.<\/td><\/tr>\n <tr><td><strong>Is penetration testing included?<\/strong><\/td><td class=\"ostocol\"><strong>Yes.<\/strong><br>Expert led VAPT, remediation support and retest report.<\/td><td><strong>No.<\/strong><br>Automated scanning is not a penetration test.<\/td><\/tr>\n <tr><td><strong>Are endpoints and access covered?<\/strong><\/td><td class=\"ostocol\"><strong>Yes.<\/strong><br>Endpoint control, DLP and ZTNA in the platform.<\/td><td><strong>Partly.<\/strong><br>Assets are assessed, not controlled.<\/td><\/tr>\n <tr><td><strong>What does compliance look like?<\/strong><\/td><td class=\"ostocol\"><strong>Built in.<\/strong><br>200 plus frameworks, evidence from Osto’s controls.<\/td><td><strong>Audit checks and benchmarks.<\/strong><br>Configuration scanning, not control attestation.<\/td><\/tr>\n <tr><td><strong>How is it priced?<\/strong><\/td><td class=\"ostocol\"><strong>One platform.<\/strong><br>Every module included, one predictable bill.<\/td><td><strong>Per asset.<\/strong><br>Cost rises with the estate you scan.<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p><strong>The practical difference:<\/strong> In an Osto vs Tenable decision it comes to this. Tenable is excellent at telling you where you stand. Osto changes where you stand, and produces the <a href=\"https:\/\/www.osto.one\/resources\/guides\/soc-2-controls-evidence\/\">audit evidence<\/a> while it does it.<\/p>\n\n <h2 class=\"sec\" id=\"who\">Osto vs Tenable: which platform fits your team?<\/h2>\n\n <div class=\"cards2\">\n <div class=\"vcard\">\n <span class=\"tag\">Tenable may fit when<\/span>\n <h4>You have engineers to work the findings<\/h4>\n <p>Tenable for startups makes sense when you run a large asset estate, have people who triage and patch as part of their week, and already have enforcement, testing and compliance covered elsewhere.<\/p>\n <\/div>\n <div class=\"vcard osto\">\n <span class=\"tag\">Osto is the stronger default when<\/span>\n <h4>You need the gaps closed, not counted<\/h4>\n <p>You want protection that blocks, <a href=\"https:\/\/www.osto.one\/resources\/what-is-vapt\/\">VAPT<\/a> your buyers accept, and <a href=\"https:\/\/www.osto.one\/resources\/guides\/security-questionnaires-for-startups\/\">security questionnaires<\/a> answered from live platform state. Our <a href=\"https:\/\/www.osto.one\/resources\/guides\/cybersecurity-checklist-startups\/\">cybersecurity checklist for startups<\/a> sets out the full list, and it is where most Osto vs Tenable shortlists land.<\/p>\n <\/div>\n <\/div>\n\n <h2 class=\"sec\" id=\"osto\">Why growing teams pick Osto in an Osto vs Tenable decision<\/h2>\n\n <div class=\"whygrid\">\n <div class=\"wc\"><span class=\"n\">1<\/span><h4>Blocking, not just reporting<\/h4><p>A self configuring WAF stops the request instead of logging that it was possible.<\/p><\/div>\n <div class=\"wc\"><span class=\"n\">2<\/span><h4>Testing your buyers accept<\/h4><p>Expert led VAPT with a remediation and retest report, not scanner output.<\/p><\/div>\n <div class=\"wc\"><span class=\"n\">3<\/span><h4>The audit layer is part of the product<\/h4><p>Evidence is pulled from controls Osto runs and mapped to 200 plus frameworks.<\/p><\/div>\n <div class=\"wc\"><span class=\"n\">4<\/span><h4>No per asset meter<\/h4><p>Coverage does not get more expensive every time you add infrastructure.<\/p><\/div>\n <\/div>\n\n <div class=\"callout\">\n <h3>A findings list is not a control.<\/h3>\n <p>If your Osto vs Tenable shortlist came down to coverage, see how Osto brings cybersecurity, compliance automation, VAPT and security operations together for fast-moving teams.<\/p>\n <a class=\"btn\" href=\"https:\/\/osto.one\/book-demo\/\" target=\"_blank\" rel=\"noopener\">Book a Demo<\/a>\n <\/div>\n\n <div class=\"faq\" id=\"faq\">\n <h2 class=\"sec\">Osto vs Tenable: common questions<\/h2>\n <details><summary>Osto vs Tenable: what is the main difference?<\/summary><p>Tenable is an exposure management platform built on Nessus that scans assets, cloud, web applications and identity, then prioritises what to fix, priced per asset. Osto runs the controls that prevent those issues, includes expert led VAPT, and maps compliance across 200 plus frameworks with evidence collected from the platform.<\/p><\/details>\n <details><summary>Is Osto a Tenable alternative?<\/summary><p>For a startup, yes. The Osto vs Tenable choice comes down to detection against prevention plus proof, and a Tenable alternative is the right search when you need the issues closed and evidenced rather than catalogued for a team you do not have. Tenable pricing is also metered per asset, so the bill tracks your infrastructure rather than your headcount.<\/p><\/details>\n <details><summary>Is a Tenable Nessus scan the same as a penetration test?<\/summary><p>No, and buyers know the difference. A Tenable Nessus scan is automated signature and configuration checking. A penetration test is an expert attempting to exploit the application, with business logic testing, a written report and a retest after fixes. Enterprise security reviews ask for the second one. Osto includes expert led VAPT plus an AI scanner that runs on a schedule.<\/p><\/details>\n <details><summary>Does Tenable protect our application?<\/summary><p>No. Web application scanning finds issues in your app, it does not sit in front of it and block traffic. Blocking is a <a href=\"https:\/\/www.osto.one\/resources\/guides\/do-you-need-a-waf\/\">WAF function<\/a>, and Osto includes one that discovers your apps and APIs automatically and builds positive security policy from learned behaviour.<\/p><\/details>\n <details><summary>Tenable has compliance checks. Is that SOC 2?<\/summary><p>No. Tenable compliance features audit configurations against benchmarks such as CIS, which is useful hardening evidence for one part of a control. An auditor still needs the framework mapping, policies, and proof that controls operated across the window. Osto covers SOC 2 and <a href=\"https:\/\/www.osto.one\/resources\/iso-27001-for-startups\/\">ISO 27001<\/a> end to end, with the opinion issued by an accredited independent auditor.<\/p><\/details>\n <details><summary>How long does SOC 2 take with Osto?<\/summary><p>Roughly 115 days end to end: seven days to readiness including VAPT, a mandatory three month evidence window, then around ten days of external CPA audit by an <a href=\"https:\/\/www.aicpa-cima.com\/resources\/landing\/system-and-organization-controls-soc-suite-of-services\" target=\"_blank\" rel=\"noopener\">AICPA<\/a> accredited firm. The evidence window is set by the standard, so no platform can remove it.<\/p><\/details>\n <\/div>\n\n\n<\/article>\n\n<script type=\"application\/ld+json\">\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"Osto vs Tenable: what is the main difference?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Tenable is an exposure management platform built on Nessus that scans assets, cloud, web applications and identity, then prioritises what to fix, priced per asset. Osto runs the controls that prevent those issues, includes expert led VAPT, and maps compliance across 200 plus frameworks with evidence collected from the platform.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is Osto a Tenable alternative?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"For a startup, yes. The Osto vs Tenable choice comes down to detection against prevention plus proof, and a Tenable alternative is the right search when you need the issues closed and evidenced rather than catalogued for a team you do not have. Tenable pricing is also metered per asset, so the bill tracks your infrastructure rather than your headcount.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is a Tenable Nessus scan the same as a penetration test?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No, and buyers know the difference. A Tenable Nessus scan is automated signature and configuration checking. A penetration test is an expert attempting to exploit the application, with business logic testing, a written report and a retest after fixes. Enterprise security reviews ask for the second one. Osto includes expert led VAPT plus an AI scanner that runs on a schedule.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Does Tenable protect our application?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Web application scanning finds issues in your app, it does not sit in front of it and block traffic. Blocking is a <a href=\\\"https:\/\/www.osto.one\/resources\/guides\/do-you-need-a-waf\/\\\">WAF function<\/a>, and Osto includes one that discovers your apps and APIs automatically and builds positive security policy from learned behaviour.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Tenable has compliance checks. Is that SOC 2?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Tenable compliance features audit configurations against benchmarks such as CIS, which is useful hardening evidence for one part of a control. An auditor still needs the framework mapping, policies, and proof that controls operated across the window. Osto covers SOC 2 and <a href=\\\"https:\/\/www.osto.one\/resources\/iso-27001-for-startups\/\\\">ISO 27001<\/a> end to end, with the opinion issued by an accredited independent auditor.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How long does SOC 2 take with Osto?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Roughly 115 days end to end: seven days to readiness including VAPT, a mandatory three month evidence window, then around ten days of external CPA audit by an <a href=\\\"https:\/\/www.aicpa-cima.com\/resources\/landing\/system-and-organization-controls-soc-suite-of-services\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">AICPA<\/a> accredited firm. The evidence window is set by the standard, so no platform can remove it.\"\n }\n }\n ]\n}\n<\/script>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>Osto vs Tenable: A Simple Comparison for Startups Comparison One hands you a list of what is wrong. 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{"id":1335,"date":"2026-09-20T19:59:18","date_gmt":"2026-09-20T19:59:18","guid":{"rendered":"https:\/\/www.osto.one\/resources\/?p=1335"},"modified":"2026-09-20T19:59:18","modified_gmt":"2026-09-20T19:59:18","slug":"osto-vs-tenable","status":"publish","type":"post","link":"https:\/\/www.osto.one\/resources\/comparison\/osto-vs-tenable\/","title":{"rendered":"Osto vs Tenable: A Simple Comparison for Startups"},"content":{"rendered":"\n\n\n\n\n\nOsto vs Tenable: A Simple Comparison for Startups<\/title>\n<meta name=\"description\" content=\"Osto vs Tenable compared. Tenable finds exposures across your assets. 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.osto-cmp .tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}\n<\/style>\n<\/head>\n<body>\n<article class=\"osto-cmp\">\n\n <span class=\"eyebrow\">Comparison<\/span>\n <p class=\"dek\">One hands you a list of what is wrong. The other stops it, fixes it and proves it to an auditor.<\/p>\n\n <div class=\"meta\">\n <span>Osto Team<\/span>\n <span class=\"dot\"><\/span>\n <span>7 min read<\/span>\n <span class=\"dot\"><\/span>\n <span>Platform Comparison<\/span>\n <\/div>\n\n <div class=\"tldr\">\n <h2>TL;DR<\/h2>\n <p class=\"tldr-lead\">Osto vs Tenable, in one line each.<\/p>\n <p><strong>Osto<\/strong> is the security stack and the compliance layer in one platform. Web and API protection, cloud posture, endpoint control, ZTNA, DLP and expert led VAPT are modules Osto runs, and audit evidence comes out of them.<\/p>\n <p><strong>Tenable<\/strong> is an exposure management vendor built on Nessus. Vulnerability scanning across assets, cloud, web apps and identity, priced per asset, producing prioritised findings for a team to act on.<\/p>\n <\/div>\n\n <p class=\"lead-in\">The Osto vs Tenable question is what happens after the scan. Finding vulnerabilities is the easy half. A lean team usually has no shortage of findings and no one to close them, and a buyer does not want your scan output anyway.<\/p>\n\n <div class=\"jump\">\n <h4>On this page<\/h4>\n <ol>\n <li><a href=\"#core\">The core difference<\/a><\/li>\n <li><a href=\"#gap\">The gap Tenable leaves that Osto fills<\/a><\/li>\n <li><a href=\"#table\">What companies actually care about<\/a><\/li>\n <li><a href=\"#who\">Which platform fits your team?<\/a><\/li>\n <li><a href=\"#osto\">Why growing teams pick Osto<\/a><\/li>\n <li><a href=\"#faq\">Common questions<\/a><\/li>\n <\/ol>\n <\/div>\n\n <h2 class=\"sec\" id=\"core\">Osto vs Tenable: the core difference in one line<\/h2>\n <p>Tenable tells you what is exposed. Osto blocks the attack, runs the test your buyer asks for, and files the evidence.<\/p>\n\n <div class=\"cards2\">\n <div class=\"vcard osto\">\n <span class=\"tag\">Osto<\/span>\n <h4>Prevention, testing and proof<\/h4>\n <p>Web and API protection, cloud posture, endpoint and device control, ZTNA and DLP, with expert led VAPT and compliance mapped from the controls Osto runs.<\/p>\n <\/div>\n <div class=\"vcard\">\n <span class=\"tag\">Tenable<\/span>\n <h4>Detection and prioritisation<\/h4>\n <p>Scanning across infrastructure, cloud, web applications and identity, with exposure scoring to rank what to fix first, licensed against the assets you scan.<\/p>\n <\/div>\n <\/div>\n\n <h2 class=\"sec\" id=\"gap\">Osto vs Tenable: the gap Osto fills<\/h2>\n <p>In an Osto vs Tenable comparison this is the decisive point. A scanner has no enforcement layer. It will flag that your API is exposed, and it will not block the request. It will flag a misconfiguration, and it will not remediate it. The <a href=\"https:\/\/www.osto.one\/resources\/soc-2-for-startups\/\">SOC 2 report<\/a> your buyer wants asks which controls operated, not which findings were open.<\/p>\n\n <div class=\"split\">\n <div class=\"sp\">\n <h4>Buy Tenable and you still buy this separately<\/h4>\n <ul>\n <li>A web application firewall to actually block attacks<\/li>\n <li>An endpoint agent and device control<\/li>\n <li>A penetration test, because a scan is not one<\/li>\n <li>A compliance platform to map controls and hold evidence<\/li>\n <li>Security questionnaire responses, done manually<\/li>\n <li>Engineering time to work the findings backlog<\/li>\n <li>Per asset licensing as your infrastructure grows<\/li>\n <\/ul>\n <\/div>\n <div class=\"sp fill\">\n <h4>Buy Osto and this is already included<\/h4>\n <ul>\n <li>Reverse proxy WAAP blocking OWASP Top 10 and bots<\/li>\n <li>Endpoint antimalware, device control and File Access DLP<\/li>\n <li>Expert led VAPT with remediation support and retest<\/li>\n <li>Compliance across 200 plus frameworks<\/li>\n <li>AI security questionnaires from live platform state<\/li>\n <li>CSPM that flags and guides the fix<\/li>\n <li>One platform, no per asset meter<\/li>\n <\/ul>\n <\/div>\n <\/div>\n\n <div class=\"note\">\n <strong>The question that decides it.<\/strong> Most Osto vs Tenable decisions turn on one question. Do you need to know what is wrong, or do you need it closed and evidenced? Visibility is valuable when you have engineers waiting to act on it. Without them, a findings list is a backlog, not a control.\n <\/div>\n\n <h2 class=\"sec\" id=\"table\">Osto vs Tenable: what companies actually care about<\/h2>\n <p>Seven criteria decide most Osto vs Tenable evaluations. Each verdict below is followed by the reason behind it.<\/p>\n <div class=\"tablewrap\">\n <table>\n <thead>\n <tr><th>Criteria<\/th><th class=\"ostocol\">Osto<\/th><th>Tenable<\/th><\/tr>\n <\/thead>\n <tbody>\n <tr><td><strong>Who is it for?<\/strong><\/td><td class=\"ostocol\"><strong>Startups and lean teams.<\/strong><br>No security function required.<\/td><td><strong>Teams who can work a findings queue.<\/strong><br>Output is a prioritised list to action.<\/td><\/tr>\n <tr><td><strong>What does it do?<\/strong><\/td><td class=\"ostocol\"><strong>Prevents, tests and proves.<\/strong><br>Controls run, testing is included, evidence follows.<\/td><td><strong>Finds and ranks.<\/strong><br>Detection and prioritisation, not enforcement.<\/td><\/tr>\n <tr><td><strong>Is the product we ship protected?<\/strong><\/td><td class=\"ostocol\"><strong>Yes, at the edge.<\/strong><br>WAAP with automatic app and API discovery.<\/td><td><strong>Scanned, not protected.<\/strong><br>Web app scanning reports issues, it does not block.<\/td><\/tr>\n <tr><td><strong>Is penetration testing included?<\/strong><\/td><td class=\"ostocol\"><strong>Yes.<\/strong><br>Expert led VAPT, remediation support and retest report.<\/td><td><strong>No.<\/strong><br>Automated scanning is not a penetration test.<\/td><\/tr>\n <tr><td><strong>Are endpoints and access covered?<\/strong><\/td><td class=\"ostocol\"><strong>Yes.<\/strong><br>Endpoint control, DLP and ZTNA in the platform.<\/td><td><strong>Partly.<\/strong><br>Assets are assessed, not controlled.<\/td><\/tr>\n <tr><td><strong>What does compliance look like?<\/strong><\/td><td class=\"ostocol\"><strong>Built in.<\/strong><br>200 plus frameworks, evidence from Osto’s controls.<\/td><td><strong>Audit checks and benchmarks.<\/strong><br>Configuration scanning, not control attestation.<\/td><\/tr>\n <tr><td><strong>How is it priced?<\/strong><\/td><td class=\"ostocol\"><strong>One platform.<\/strong><br>Every module included, one predictable bill.<\/td><td><strong>Per asset.<\/strong><br>Cost rises with the estate you scan.<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p><strong>The practical difference:<\/strong> In an Osto vs Tenable decision it comes to this. Tenable is excellent at telling you where you stand. Osto changes where you stand, and produces the <a href=\"https:\/\/www.osto.one\/resources\/guides\/soc-2-controls-evidence\/\">audit evidence<\/a> while it does it.<\/p>\n\n <h2 class=\"sec\" id=\"who\">Osto vs Tenable: which platform fits your team?<\/h2>\n\n <div class=\"cards2\">\n <div class=\"vcard\">\n <span class=\"tag\">Tenable may fit when<\/span>\n <h4>You have engineers to work the findings<\/h4>\n <p>Tenable for startups makes sense when you run a large asset estate, have people who triage and patch as part of their week, and already have enforcement, testing and compliance covered elsewhere.<\/p>\n <\/div>\n <div class=\"vcard osto\">\n <span class=\"tag\">Osto is the stronger default when<\/span>\n <h4>You need the gaps closed, not counted<\/h4>\n <p>You want protection that blocks, <a href=\"https:\/\/www.osto.one\/resources\/what-is-vapt\/\">VAPT<\/a> your buyers accept, and <a href=\"https:\/\/www.osto.one\/resources\/guides\/security-questionnaires-for-startups\/\">security questionnaires<\/a> answered from live platform state. Our <a href=\"https:\/\/www.osto.one\/resources\/guides\/cybersecurity-checklist-startups\/\">cybersecurity checklist for startups<\/a> sets out the full list, and it is where most Osto vs Tenable shortlists land.<\/p>\n <\/div>\n <\/div>\n\n <h2 class=\"sec\" id=\"osto\">Why growing teams pick Osto in an Osto vs Tenable decision<\/h2>\n\n <div class=\"whygrid\">\n <div class=\"wc\"><span class=\"n\">1<\/span><h4>Blocking, not just reporting<\/h4><p>A self configuring WAF stops the request instead of logging that it was possible.<\/p><\/div>\n <div class=\"wc\"><span class=\"n\">2<\/span><h4>Testing your buyers accept<\/h4><p>Expert led VAPT with a remediation and retest report, not scanner output.<\/p><\/div>\n <div class=\"wc\"><span class=\"n\">3<\/span><h4>The audit layer is part of the product<\/h4><p>Evidence is pulled from controls Osto runs and mapped to 200 plus frameworks.<\/p><\/div>\n <div class=\"wc\"><span class=\"n\">4<\/span><h4>No per asset meter<\/h4><p>Coverage does not get more expensive every time you add infrastructure.<\/p><\/div>\n <\/div>\n\n <div class=\"callout\">\n <h3>A findings list is not a control.<\/h3>\n <p>If your Osto vs Tenable shortlist came down to coverage, see how Osto brings cybersecurity, compliance automation, VAPT and security operations together for fast-moving teams.<\/p>\n <a class=\"btn\" href=\"https:\/\/osto.one\/book-demo\/\" target=\"_blank\" rel=\"noopener\">Book a Demo<\/a>\n <\/div>\n\n <div class=\"faq\" id=\"faq\">\n <h2 class=\"sec\">Osto vs Tenable: common questions<\/h2>\n <details><summary>Osto vs Tenable: what is the main difference?<\/summary><p>Tenable is an exposure management platform built on Nessus that scans assets, cloud, web applications and identity, then prioritises what to fix, priced per asset. Osto runs the controls that prevent those issues, includes expert led VAPT, and maps compliance across 200 plus frameworks with evidence collected from the platform.<\/p><\/details>\n <details><summary>Is Osto a Tenable alternative?<\/summary><p>For a startup, yes. The Osto vs Tenable choice comes down to detection against prevention plus proof, and a Tenable alternative is the right search when you need the issues closed and evidenced rather than catalogued for a team you do not have. Tenable pricing is also metered per asset, so the bill tracks your infrastructure rather than your headcount.<\/p><\/details>\n <details><summary>Is a Tenable Nessus scan the same as a penetration test?<\/summary><p>No, and buyers know the difference. A Tenable Nessus scan is automated signature and configuration checking. A penetration test is an expert attempting to exploit the application, with business logic testing, a written report and a retest after fixes. Enterprise security reviews ask for the second one. Osto includes expert led VAPT plus an AI scanner that runs on a schedule.<\/p><\/details>\n <details><summary>Does Tenable protect our application?<\/summary><p>No. Web application scanning finds issues in your app, it does not sit in front of it and block traffic. Blocking is a <a href=\"https:\/\/www.osto.one\/resources\/guides\/do-you-need-a-waf\/\">WAF function<\/a>, and Osto includes one that discovers your apps and APIs automatically and builds positive security policy from learned behaviour.<\/p><\/details>\n <details><summary>Tenable has compliance checks. Is that SOC 2?<\/summary><p>No. Tenable compliance features audit configurations against benchmarks such as CIS, which is useful hardening evidence for one part of a control. An auditor still needs the framework mapping, policies, and proof that controls operated across the window. Osto covers SOC 2 and <a href=\"https:\/\/www.osto.one\/resources\/iso-27001-for-startups\/\">ISO 27001<\/a> end to end, with the opinion issued by an accredited independent auditor.<\/p><\/details>\n <details><summary>How long does SOC 2 take with Osto?<\/summary><p>Roughly 115 days end to end: seven days to readiness including VAPT, a mandatory three month evidence window, then around ten days of external CPA audit by an <a href=\"https:\/\/www.aicpa-cima.com\/resources\/landing\/system-and-organization-controls-soc-suite-of-services\" target=\"_blank\" rel=\"noopener\">AICPA<\/a> accredited firm. The evidence window is set by the standard, so no platform can remove it.<\/p><\/details>\n <\/div>\n\n\n<\/article>\n\n<script type=\"application\/ld+json\">\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"Osto vs Tenable: what is the main difference?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Tenable is an exposure management platform built on Nessus that scans assets, cloud, web applications and identity, then prioritises what to fix, priced per asset. Osto runs the controls that prevent those issues, includes expert led VAPT, and maps compliance across 200 plus frameworks with evidence collected from the platform.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is Osto a Tenable alternative?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"For a startup, yes. The Osto vs Tenable choice comes down to detection against prevention plus proof, and a Tenable alternative is the right search when you need the issues closed and evidenced rather than catalogued for a team you do not have. Tenable pricing is also metered per asset, so the bill tracks your infrastructure rather than your headcount.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is a Tenable Nessus scan the same as a penetration test?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No, and buyers know the difference. A Tenable Nessus scan is automated signature and configuration checking. A penetration test is an expert attempting to exploit the application, with business logic testing, a written report and a retest after fixes. Enterprise security reviews ask for the second one. Osto includes expert led VAPT plus an AI scanner that runs on a schedule.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Does Tenable protect our application?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Web application scanning finds issues in your app, it does not sit in front of it and block traffic. Blocking is a <a href=\\\"https:\/\/www.osto.one\/resources\/guides\/do-you-need-a-waf\/\\\">WAF function<\/a>, and Osto includes one that discovers your apps and APIs automatically and builds positive security policy from learned behaviour.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Tenable has compliance checks. Is that SOC 2?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Tenable compliance features audit configurations against benchmarks such as CIS, which is useful hardening evidence for one part of a control. 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