(Jun 14, 2016) DNC chairwoman Rep. Debbie Wasserman Schultz (Fla.) said, “When we discovered the intrusion, we treated this like the serious incident it is and reached out to CrowdStrike immediately.” - https://www.washingtonpost.com/world/national-security/russian-government-hackers-penetrated-dnc-stole-opposition-research-on-trump/2016/06/14/cf006cb4-316e-11e6-8ff7-7b6c1998b7a0_story.html
Why CrowdStrike?
From the same article:
CrowdStrike is not sure how the hackers got in. The firm suspects they may have targeted DNC employees with “spearphishing” emails. These are communications that appear legitimate — often made to look like they came from a colleague or someone trusted — but that contain links or attachments that when clicked on deploy malicious software that enables a hacker to gain access to a computer. “But we don’t have hard evidence,” Alperovitch said.