#10unit 1online security and payment system
Malicious code
Harmful software code such as viruses and worms.
Notable malicious code examples
Slammer worm (2003) infected 90% of vulnerable SQL Servers in 10 minutes; Conficker (2008) reportedly infected 11 million computers; CryptoLocker ransomware encrypts files and demands Bitcoin ransom; Zeus Trojan has infected over 10 million computers since 2007 by keystroke logging.
Ransomware attacks increased by over 400% in 2016, with the U.S. Department of Justice reporting over 4,000 ransomware attacks daily.