Cambridge University startup Darktrace has become the first company to benefit from Autonomy founder Mike Lynch’s $1bn tech fund Invoke Capital.

Although the exact terms of the investment were not disclosed, the cyber defence firm is expected to receive between $10m and $20m. Darktrace, which is commercialising mathematical research from Cambridge, simultaneously announced that Sir Jonathan Evans, former director-general of intelligence agency MI5, will join its board of directors.

Lynch said: “We are delighted to announce our first investment in…