Japan's Tokio Marine is the latest insurer to be victimized by ransomware
It's the third to announce a successful attack since March.
Ransomware strikes AXA shortly after insurer announces it will stop covering extortion fees
AXA joins CNA Insurance as a recent ransomware attack victim in the insurance industry.
CNA shares details about ransomware attack, recovery effort
CNA said it had restored email function and implemented new security measures.
Top insurer CNA disconnects systems after cyberattack
It could be a "nightmare scenario" for CNA and others if hackers get ahold of policyholder information.
GCHQ head says U.K. engaged in cyberwarfare against ISIS
GCHQ head Jeremy Fleming revealed that the U.K. has conducted a proactive cyber campaign against ISIS, touting the notion of using offensive cyberattacks to counter violent extremism.