A Taiwanese student experimenting with software-defined radio technology shut down three bullet trains for nearly an hour, leading to an anti-terrorism response.

The new acquisition looks to boost visibility into third-party ecosystems that are becoming a bigger concern as vectors for supply-chain attacks.

This is the second time this year a threat actor has leveraged a CVSS 10.0 vulnerability in Cisco’s network control system.

Attackers uniquely fingerprint victims before delivering spear-phishing payloads aimed at espionage, in the latest campaign from the Belarussian nation-state threat group.

In a role reversal, investment dollars in AI security startups exceeded the value of AI acquisitions in 1Q26 by more than $1 billion, a rare