Pat McFadden will tell cyber summit that Russia ‘won’t think twice about targeting British businesses’ and danger to Nato must not be underestimated

Russia is “exceptionally aggressive and reckless in the cyber realm” and “no one should underestimate” the threat to Nato, a senior UK minister will warn in a speech on Monday.

Pat McFadden, whose portfolio includes national security, will tell a Nato cybersecurity conference in London that Moscow “won’t think twice about targeting British businesses”, according to excerpts of his address released on Sunday by his ministry.