“DNC Hack Prompts Allegations of Russian Involvement,” Damian Paletta and Devlin Barrett reported in the Wall Street Journal today: “U.S. authorities said they are still investigating who perpetrated the hack, but cybersecurity experts said the email release resembled past examples of political interference that other countries have tied to Russia.”

— “It began ominously,” Thomas Rid writes in Motherboard: “Nearly two months earlier, in April, the Democrats had noticed that something was wrong in their networks. Then, in early May, the DNC called in CrowdStrike, a security firm that specializes in countering advanced network threats. After deploying their tools on the DNC’s machines, and after about two hours of work, CrowdStrike found ‘two sophisticated adversaries’ on the Committee’s network.”

— More from Rid: “Although so far the actual content of the leaked documents appears not to have been tampered with, manipulation would fit an established pattern of operational behaviour in other contexts, such as troll farms or planting fake media stories.”

— “Trump, DNC, RNC Flunk Email Security Test” by Brian Krebs / Krebs on Security: “Donald J. Trump has repeatedly bashed Sen. Hillary Clinton for handling classified documents on her private email server, suggesting that anyone who is so lax with email security isn’t fit to become president. But a closer look at the Web sites for each candidate shows that in contrast to hillaryclinton.com, donaldjtrump.com has failed to take full advantage of a free and open email security technology designed to stymie email spoofing and phishing attacks.”