anonymous person behind laptop with black background

access anonymous antivirus attack bitcoin black blackmail code computer crime criminal cryptoviral cyber cyberattack danger dangerous dark data decrypt delete email encrypt encrypted encryption erase extortion files firewall folder fraud gray grey hacked hackers hacking hazard hide infrastructure interaction internet issue key laptop locked malicious malware money net network online organised password pirate price problem programme ransom ransomware safety scam screen secure security software stealing technology theft thief threat trojan victim virus vpn wall wannacry web worldwide worm