Why pen testing once a year is no longer enough

For years, the annual penetration test has been the gold standard of due diligence: hire testers once a year, get a report, fix the findings, file it away. That rhythm made sense when systems changed slowly. Today, it leaves you exposed for most of the year.

A penetration test is a photograph, not a film. It tells you how your defences looked on one particular week. The day after the testers leave, your environment starts changing: new software deployments, new cloud services, new employees, new integrations — and thousands of newly published vulnerabilities every month.

If your test is in January and a critical vulnerability in your VPN is published in February, an annual cycle means you might not discover your exposure until the following January. Attackers will not wait that long — exploitation of newly disclosed vulnerabilities now routinely begins within days.

Continuous vulnerability management replaces the annual snapshot with an always-on view of your exposure. Automated scanning checks your systems, applications, and cloud estate on a rolling basis. Findings are prioritised by real-world exploitability — not just a raw severity score — so your team fixes what actually matters first.

Penetration testing still plays a vital role: skilled human testers find the chained, creative attack paths that scanners cannot. But the test becomes a validation layer on top of continuous visibility, rather than your only look at the problem once a year.

A sensible pattern for a growing business: continuous automated vulnerability scanning across your estate, monthly review and remediation of prioritised findings, and a professional penetration test at least annually — plus after any major change such as a new customer-facing application or cloud migration.

This is precisely how our Professional and Enterprise plans are structured: quarterly or unlimited pen testing layered on continuous monitoring, so nothing gets a year to fester.