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A glass-like protective wing hovers over a circuit board being examined for software-security weaknesses.
SecurityGlobal+2 clusters01

Project Glasswing helped find at least 129,000 software flaws. The patch count is less clear

Security teams once worried that they could not find software flaws quickly enough. The next worry may be whether they can fix them as fast as AI discovers them. Anthropic's October update to Project Glasswing and its Cyber Verification Program says partners uncovered at least 129,000 verified vulnerabilities between April and July 2026, while Anthropic's separate open-source scanning found another 5,500 through October. It says more than 33,000 of the verified findings were rated critical or high severity. These are Anthropic-reported figures drawn from partial partner data, not an independently audited census of every issue or a tally of vulnerabilities already repaired. The company says fewer than half of partners disclosed patch counts, often because fixes were in progress; the rate of remediation therefore remains hard to judge. Project Glasswing began in April with major technology and infrastructure partners using a restricted model, Mythos Preview, for defensive work. Its stated purpose was to give defenders a head start before comparable cyber capabilities spread more widely. The October update moves its members into a new specialized-access tier, but the real public-interest test is not whether a model finds a dramatic number. It is how many unique, exploitable weaknesses were responsibly reported, how quickly maintainers verified and patched them, and whether smaller open-source teams could handle the queue. Discovery without repair can increase the number of people who know a system is fragile while leaving users exposed. The company's disclosure is an important signal of defensive capability, but an outcomes ledger would show whether the head start is becoming protection.

6 min
Three nested security gates lead toward an anonymous analyst in a critical-infrastructure control room.
SecurityUnited States / Global+2 clusters02

Anthropic opens three tiers of powerful cyber AI to defenders, with different limits

A security team at a regional hospital does not need the same permissions as a government red team testing a power grid. Anthropic's expanded Cyber Verification Program is built around that distinction. Its Defense Access tier is meant for incident response, malware analysis and vulnerability validation on owned or maintained systems. Red Team Access adds authorized penetration testing for organizations, with real-time blocks retained for actions Anthropic says could cause mass disruption or physical harm. Specialized Access, including existing Project Glasswing participants, is limited to verified organizations authorized to test high-risk systems such as power grids, flight operations and interbank transfers; Anthropic says it reviews that tier with the U.S. government. This is a company-run access framework, not a public license establishing that every authorized use is safe. Anthropic tested its safeguards on 10 interactive cyber challenges with five attempts each. It says every generally available trial was stopped at the first prompt; in Defense Access 46 of 50 trials were blocked at some point and four succeeded; in Red Team Access none were blocked and the model completed 34 of 50. These are benchmark results, not evidence of real attacks, and the broad tier intentionally allows authorized offensive simulation. The central governance question is whether verification and monitoring can keep that permission tied to systems the user is allowed to test. Smaller defenders may gain access to better tools, but they also face application checks and data-retention requirements. If the tiers work, defenders gain speed without a general release of potent capabilities. If authorization checks or misuse detection fail, the same flexibility that helps red teams could lower the barrier for abuse.

6 min