An army of volunteer hackers is rising up in cyberspace to defend Ukraine, though internet specialists are calling on geeks and other "hacktivists" to stay out of a potentially very dangerous computer war. According to Livia Tibirna, an analyst at the European cyber security firm Sekoia www.sekoia.io, nearly 260,000 people have joined the "IT Army" of volunteer hackers, which was set up at the initiative of Ukraine's digital minister Mykhailo Fedorov.
The group, which can be accessed via the en
