Field notes from the edge.
What our engineers learned this week. Hands-on technical deep-dives, postmortems, and strategy frameworks.
AIResearchers Report 84 Flaws in 4G and 5G Cores, Including a Session Hijacking Flaw
Researchers from Nanyang Technological University have identified 84 security vulnerabilities affecting 4G and 5G core network infrastructure. These flaws could enable attackers to launch denial-of-service attacks and hijack user sessions, representing a widespread security concern for mobile network operators.
AIEnforcing the First AS in BGP AS_PATHs
Recent BGP route hijacking incidents have exploited unused autonomous system numbers (ASNs) by forging AS_PATHs to misdirect traffic while concealing attacker identity. The attacks succeed when networks fail to implement basic 'First AS' verification, which confirms that a BGP peer's AS is correctly listed as the first hop in advertised routes. While ASPA (Autonomous System Provider Authorization)