AI shrinks zero-day exploit time from a year to a single day, heading toward one minute — Zero-Day Clock warns security window has collapsed
The Zero-Day Clock reveals a dramatic decrease in the time between vulnerability discovery and exploitation, dropping from nearly a year in 2021 to just over a day in 2026. Predictions suggest this could further decline to one hour by 2027, highlighting the urgent need for improved cybersecurity measures. The rise in zero-day exploits, which have increased from 31% to 73.2% in five years, underscores the growing risks in the tech landscape.
- ▪The mean time between a vulnerability being discovered and exploited has decreased significantly, now averaging just over a day.
- ▪The percentage of zero-day exploits has risen from 31% five years ago to 73.2% today.
- ▪The Zero-Day Clock predicts that the average exploit time could drop to one hour by 2027.
Tom's Hardware files mainly under tech. We currently carry 430 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Tom's Hardware |
| Canonical URL | https://www.tomshardware.com/tech-industry/cyber-security/zero-day-clock-visualizes-and-quantifies-the-effects-of-ai-on-software-security-time-until-exploit-went-from-one-year-to-one-day-and-projected-to-be-one-minute-soon-enough |
| Publication time | Tue, 26 May 2026 10:20:00 +0000 |
| Retrieval time | 2026-05-26T10:27:48.105Z |
| Last seen | 2026-05-26T10:27:48.105Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | sln4_k0rrph9 |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Tech Industry Cybersecurity AI shrinks zero-day exploit time from a year to a single day, heading toward one minute — Zero-Day Clock warns security window has collapsed News By Bruno Ferreira published 26 May 2026 20 years' worth of screaming from security researchers, in graphs and numbers When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. (Image credit: Getty Images) Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter The cybersecurity world has been abuzz about AI-assisted tools finding vulnerabilities faster than ever.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Tom's Hardware.
Discussion
0 commentsMore from Tom's Hardware
