We were sent the latest Cisco Quarterly Threat Report (2Q11). The first half of 2011 witnessed a seemingly nonstop array of data breaches against companies, big and small. In some of those cases, the attackers claimed the motive was to shed light on security issues. But in other cases of stolen and published customer data, attackers claimed to be doing it for the “lulz.”

Some key findings include:

- The rate of unique instances of malware more than doubled in the second quarter

- The average encounter rate in the second quarter was 335 encounters per enterprise per month, with the highest peaks in March (445) and April (453)

- The first half of 2011 witnessed a seemingly nonstop array of data breaches directed at companies, and sometimes individuals, across many sectors. Advanced Persistent Threats (APTs) played a key role in many of the breaches.

Download the full report: Cisco report.

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