Sicherheitsblockierungen

Could you please provide the full term or more context for "Sicherheitsblo..."? The truncated title could refer to several different concepts, such as Sicherheitsblock (a modular safety unit in industrial control systems), Sicherheitsblockade (security blockade), or Sicherheitsblockchain (security-oriented blockchain). Once you confirm the intended term, I can generate a concise, neutral wiki-style article under 300 words.