DigiCert’s latest "2025 Radar Brief" revealed that attacks targeting UltraDNS – cloud-hosted DNS services designed to securely guide user query responses for enterprises – soared in late 2025, with ...

Deutsche Bahn suspects Russian hackers behind a major DDoS attack causing IT outages in its app and website, echoing past cyber incidents on German infrastructure.

Deutsche Bahn, Germany’s national rail operator, has been dealing with a large-scale distributed denial-of-service (DDoS) attack.

Bitcoin Knots' attempt at transaction filtering has been a completely ineffective and failed attempt to denial-of-service attack the Bitcoin network. This is a very basic concept. Someone makes use of ...

Aisuru botnet launched record-breaking 31.4 Tbps DDoS attack on telecom sector Cloudflare mitigated the “Night before Christmas” campaign without major disruption Botnet uses compromised consumer ...