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US bans federal agencies from using popular anti-virus software
Cyber security company follows rival Symantec in seeking to allay customer concerns
‘Splinternet’ debate fuelled over fears agencies use vulnerabilities for espionage
Dragonfly has ability to sabotage computer networks in US and Turkey, warns Symantec
Criminals now cry ‘stand and deliver’ using digital technology
Designers super-charged ransomware using tools leaked by US National Security Agency
Any link between WikiLeaks claims and spying would further embarrass US intelligence
Rapid-fire acquisitions bring risk but keep product suites comprehensive
Deal boom as industry consolidates and private equity groups circle
Purchase of threat-blocking service is the struggling antivirus company’s largest deal for a decade
US stocks fall for third session as investors await Fed meeting
Identifying culprits is fraught with error, as recent attacks on banks show
Corporate computer systems are increasingly vulnerable as attackers look to hold them hostage
Looming debt sale may be biggest high yield offering on record as investors question recent rally
Hackers are hiring professional linguists in their efforts to trick the unwary
Private equity groups find it increasingly difficult to raise debt to close deals
Companies renegotiate terms of last year’s biggest leveraged buyout
Carlyle’s $8bn deal for Symantec’s data storage unit would be the largest LBO of 2015
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