Malware attacks were particularly high this past November, according to a report by cybersecurity vendor Check Point.
The report is based on the company's ThreatCloud database, which identifies malware types through more than 250 million addresses analyzed for bot discovery, 11 million malware signatures and 5.5 million infected websites.
Here's what you need to know about malware in November 2016:
1. Conficker, a virus that opens infected devices to remote operations and additional malware installations, was the most prevalent malware; it was responsible for 15 percent of the recognized attacks.
2. Locky, a ransomware family, was the second most common type of malware; it was responsible for 6 percent of the recognized attacks last month. Locky was also the most common malware family in the largest amount of countries.
3. There was a 10 percent increase in the number of attacks using Locky; there was also a 10 percent increase in the number of attacks using Cryptowall, the fifth most common malware family.
4. The third most common type of malware was Sality, a virus that works in a similar way to Conficker; it was responsible for 5 percent of the known attacks last month.
5. HummingBad, an Android malware that installs fraudulent applications, was the most common malware used to attack mobile devices; the second and third most common malware families for mobile devices were Triada and Ztorg, respectively.