Charges planned in cyberattack

KIEV, Ukraine — The small Ukrainian tax software company that is accused of being patient zero in a damaging global cyberepidemic is under investigation and will face charges, the head of Ukraine’s cyberpolice suggested Monday.

Col. Serhiy Demydiuk, the head of Ukraine’s national cyberpolice unit, said Kiev-based M.E. Doc’s employees had blown off repeated warnings about the security of their information technology infrastructure.

Demydiuk and other officials say last week’s unusually disruptive cyberattack was mainly spread through a malicious update to M.E. Doc’s eponymous tax software program, which is widely used by accountants and businesses across Ukraine.