Malware has risen sharply over the last three quarters, according to the McAfee Threat Report: Second Quarter 2013. McAfee said it currently has more than 147 million malware samples.
Spam is also on the rise, helping spread malware and phishing attacks. Mobile threats are also increasing, McAfee said, including new backdoor Trojans and banking malware targeting mobile devices this quarter.
Malware that uses stolen digital certificates to pose as legitimate software increased by 50 percent, McAfee said. In addition, Web-based attacks, designed to target vulnerable browser components comprise almost three-fourths of the Internet's malicious activity, McAfee said.
Here's a look at the latest attack trends and hacking techniques, according to McAfee's threat report.