With the proliferation of Internet devices, malicious software, also called malware for short (viruses, worms, and Trojan horse), is used for

With the proliferation of Internet devices, malicious software, also called malware for short (viruses, worms, and Trojan horse), is used for stealing, disrupting or even destroying sensitive information and is continuously on the rise. Which of these malicious software has been more devastating recently and how could it be prevented or contained?