Cybersecurity is a field defined by constantly shifting threats — which sounds like a natural fit for SR&ED, but eligibility still comes down to whether a specific project involves genuine technological uncertainty, not just the fact that security work is inherently adversarial.
Where Eligibility Commonly Shows Up
● Developing detection methods for novel attack patterns that existing signature or heuristic approaches can’t reliably identify
● Solving false-positive or false-negative rate problems that persist despite tuning known detection techniques
● Building systems to detect threats in encrypted or obfuscated traffic without existing published methods to rely on
● Architecting systems to maintain detection performance at scale or latency requirements existing tools don’t meet
Where It Usually Doesn’t Apply
● Deploying and configuring commercial security tools using vendor-documented settings
● Routine signature updates and rule tuning within an existing, working detection system
● Standard penetration testing and vulnerability scanning using established methodologies
● Compliance-driven security implementation following documented frameworks
A Field That Moves Fast — and Documents Slowly
Security teams often operate under time pressure that discourages documentation — responding to an active threat doesn’t leave much room for note-taking. But incident postmortems, detection-tuning logs, and threat research notes are frequently already being generated; the gap is usually in flagging which of them point to genuine experimental development rather than routine response.
