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Measuring the impact of AI on experienced open-source developer productivity

We conduct a randomized controlled trial (RCT) to understand how early-2025 AI tools affect the productivity of experienced open-source developers working on their own repositories. Surprisingly, we find that when developers use AI tools, they take 19% longer than without—AI makes them slower. We view this result as a snapshot of early-2025 AI capabilities in one relevant setting; as these systems continue to rapidly evolve, we plan on continuing to use this methodology to help estimate AI accel

Measuring the Impact of AI on Experienced Open-Source Developer Productivity

We conduct a randomized controlled trial (RCT) to understand how early-2025 AI tools affect the productivity of experienced open-source developers working on their own repositories. Surprisingly, we find that when developers use AI tools, they take 19% longer than without—AI makes them slower. We view this result as a snapshot of early-2025 AI capabilities in one relevant setting; as these systems continue to rapidly evolve, we plan on continuing to use this methodology to help estimate AI accel

Hundreds of Brother printer models have security flaw that can't be patched

This could allow bad actors to remotely access these devices. A security company has found eight security vulnerabilities that impact hundreds of Brother printer models. The company has released firmware updates to handle seven of these vulnerabilities, but one security flaw cannot be patched. Brother has indicated that it'll fix the remaining issue during the manufacturing process of future printers, which doesn't help current owners. The company recommends that users change the default main

History made as Al claims number one spot among world's top ethical hackers

What just happened? Just a year after its founding, cybersecurity startup Xbow has risen to the top of the HackerOne leaderboard, a platform that ranks the world's most effective bug hunters by the number and severity of vulnerabilities they uncover for major companies. This marks the first time an artificial intelligence system has claimed the number one spot, outpacing thousands of human ethical hackers and security researchers who have traditionally dominated the field. Xbow's rapid ascent i

AI tool Xbow becomes first non-human to top ethical hacker leaderboard

What just happened? Just a year after its founding, cybersecurity startup Xbow has risen to the top of the HackerOne leaderboard, a platform that ranks the world's most effective bug hunters by the number and severity of vulnerabilities they uncover for major companies. This marks the first time an artificial intelligence system has claimed the number one spot, outpacing thousands of human ethical hackers and security researchers who have traditionally dominated the field. Xbow's rapid ascent i

AI Agents Are Getting Better at Writing Code—and Hacking It as Well

The latest artificial intelligence models are not only remarkably good at software engineering—new research shows they are getting ever-better at finding bugs in software, too. AI researchers at UC Berkeley tested how well the latest AI models and agents could find vulnerabilities in 188 large open source codebases. Using a new benchmark called CyberGym, the AI models identified 17 new bugs including 15 previously unknown, or “zero-day,” ones. “Many of these vulnerabilities are critical,” says

XBOW, an autonomous penetration tester, has reached the top spot on HackerOne

For the first time in bug bounty history, an autonomous penetration tester has reached the top spot on the US leaderboard. Our path to reaching the top ranks on HackerOne began with rigorous benchmarking. Since the early days of XBOW, we understood how crucial it was to measure our progress, and we did that in two stages: First we tested XBOW with existing CTF challenges (from well-known providers like PortSwigger and Pentesterlab), then quickly moved on and built our own unique benchmark that

The cloud is not enough: Cisco embraces the shift toward Hybrid AI workloads

Bottom line: At this year's Cisco Live event in San Diego, one thing became apparent: the opportunity to run modern applications like GenAI and autonomous agents is no longer limited to the cloud. Cisco was ready to highlight several new products and services specifically targeted at major cloud computing providers and large ISPs. They also noted that interest in expanding the capabilities of on-premises data centers is not only still alive, but it's being reinvigorated by the rapid transition t