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1) Droves of patches arrived from software vendors, including Apple, WordPress, Cisco and Samba.

2) Versions of a popular free software tool were compromised to spy on more than 15 technology firms.

3) A phishing campaign leveraging Office 365 is much larger, more complex and more targeted than originally thought.

4) A Windows kernel error may prevent security technology from detecting malicious code during runtime.

5) A banking Trojan became even more potent with the addition of a surveillance exploit believed developed by the U.S. National Security Agency.