
right|thumb|The GCHQ|Government Communications Headquarters (GCHQ) operates "Tempora"
right|thumb|The GCHQ|Government Communications Headquarters (GCHQ) operates "Tempora"
Tempora is the codeword for a formerly-secret computer system that is used by the British Government Communications Headquarters (GCHQ). This system is used to buffer most Internet communications that are extracted from fibre-optic cables, so these can be processed and searched at a later time. It was tested from 2008 and became operational in late 2011.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).