BT has announced the appointment of Kevin Brown as managing director of BT Security.

Brown, who will be responsible for the company's physical and cyber security activity around the world, is replacing Mark Hughes, who is stepping down at the end of this year.

Brown joined BT in 2012 after a 20-year career in law enforcement. He has specialised in security throughout his time at BT, and in previous roles has led its global investigation and intelligence teams and driven the modernisation of BT's protection systems.

In his previous role, Brown led BT Security’s engagement with international governments, and managed its relationships with international law enforcement agencies such as Interpol and Europol.

"Our global network gives us a ringside view of the latest threats so we can anticipate and mitigate emerging attacks before they impact our business or our customers," said Brown.

"Our expertise in securing BT's global network is why organisations around the world trust us to protect their most critical assets. I'm really looking forward to continuing the rapid growth that BT Security has seen in recent years."

BT is one of the world's biggest providers of cyber security services, employing 3,000 global experts who protect the company's operations across 180 countries as well as its customers' networks.

The company claims that its global network of security operations centres protects it against 125,000 cyber-attacks every month.

BT is also the UK's biggest private cyber security employer, and plans to increase its headcount by 25 per cent over the next five years.