The home addresses of some Metropolitan Police officers may have been compromised by computer hackers, according to reports. Commissioner Sir Mark Rowley has assured the force’s 47,000 officers and support workers that their personal details were not affected by the recent IT breach at a company responsible for producing warrant cards and passes. However, an initial survey of data held by Stockport-based Digital ID suggests that hackers may have gained access to home addresses of some Met workers. The breach occurred after new warrant cards and passes were introduced as part of Operation Fortress, a security improvement scheme. Many officers were unhappy that news of the breach was posted on an internal intranet over a Bank Holiday weekend instead of being sent directly to them via email. The Met is now conducting a review of all data held by the firm. It is believed that the hackers were blackmailers rather than terrorists, and the Met plans to personally inform staff whose home locations may have been compromised. The National Crime Agency, supported by the National Cyber Security Centre, is leading the investigation into the incident. Other police forces, government departments, and major companies also used Digital ID, although it is believed that they only used the firm’s printing equipment rather than sharing information.