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incidents in 13 weeks began with a flaw in code

What counts as a flaw in code

What kind of bug, in which layer

What the flawed code did, and who was hit

What the flawed code was for, and who got hit. Thicker bands mean more incidents.

Incidents by week

of widely used components on our list have full published formal verification

Formal verification goes back to the 1960s, and this list misses a lot of it. It is a community effort: suggest a project, a correction or a new category.

Formal verification across the software stack

Each block is a widely used component, sized by install base. Green shows how much of it is formally verified.

Fully verifiedPartly verified (shading = rough share)No published verification

Verification efforts on our list,

Newest work