Bollcoin, October 24: SlowMist's Cos warned users to promptly update their iPhone/iPad systems and beware that some apps they have installed may be poisoned with the DarkSword trojan. The trojan mainly carries out targeted attacks and targeted coin theft against crypto users on iPhone. Attackers exploit iOS vulnerabilities to break out of the sandbox and steal various passwords and other private data from Keychain, as well as local wallet private key files, notes and other sensitive information.