McCallum added that AI was "supercharging the cybersecurity contest between attackers and defenders," and terrorists were exploiting it to improve reconnaissance and attack methodologies. Iran is stepping up efforts to strike more heavily defended targets in Britain, including military sites, while Russia is intensifying hybrid operations aimed at Ukraine’s allies, MI5 has warned. Key points and original sources are listed below.

• McCallum added that AI was "supercharging the cybersecurity contest between attackers and defenders," and terrorists were exploiting it to improve reconnaissance and attack methodologies.S1

• Iran is stepping up efforts to strike more heavily defended targets in Britain, including military sites, while Russia is intensifying hybrid operations aimed at Ukraine’s allies, MI5 has warned. Setting out what he described as a fast-changing threat landscap...S2

• By Michael Holden LONDON, Oct 13 (Reuters) - Iran is stepping up attempts to hit harder targets such as military sites in Britain and Russia is increasing its hybrid warfare against Ukraine's allies,S3

• By Michael HoldenLONDON, Oct 13 (Reuters) - Iran is stepping up attempts to hit harder targets such as military sites in Britain and Russia is increasing its hybrid warfare against Ukraine's allies, the UK's domestic spy chief said on Tuesday.In his annual spe...S4

• By Michael Holden LONDON, Oct 13 (Reuters) - Iran is ramping up attempts to hit harder targets such as military sites in Britain while Russia is escalating its hybrid warfare as it lashes out againstS5