Technical Cyber Security Alert 2010-55A – Malicious activity detected in mid-December targeted at least 20 organizations representing multiple industries including chemical, finance, information technology, and media. Investigation into this activity revealed that third parties routinely accessed the personal email accounts of dozens of users based in the United States, China, and Europe. Further analysis revealed these users were victims of previous phishing scams through which threat actors successfully gained access to their email accounts.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/86692/TA10-055A.txt
Source: https://packetstormsecurity.com/files/86692/Technical-Cyber-Security-Alert-2010-55A.html