„HollowByte“: Denial-of-Service-Lücke in OpenSSLAlertheise security Von Heise Security Ticker 20. Juli 2026 security „HollowByte“: Denial-of-Service-Lücke in OpenSSLAlertheise security Quelle: Heise Security Ticker Tags: aktuelle, codenamenalertheise, denial-of-service-angriffe, hollow, Security