ISIS makes opportunistic propaganda hay out of the failed jihadist attack in Texas.

Last week's Baltimore disturbances seem to have been cheered on in social media by some of those proverbial "outside agitators" cultural historians of the 1960s will recall. ZeroFOX finds some interesting trends surrounding a rioters' hashtag — some of its biggest users were in Russia, China, India, and the Middle East. Some of the more inflammatory tweets betrayed themselves by outdated slang (circa "Dirty Harry"), mislabeled pictures (for example, from South America), and, of course, their offshore accounts. The extent of the Tweeters' influence also remains unclear. (Quartz runs an interesting relevant (but unrelated) piece on the disproportionately big lumber heavy-hitters swing in social media.)

Their motives are unknown, but almost surely include the usual mix of disinhibited lulz-seeking (scrawny second cousin to looting), hacktivism, and state-sponsored mischief-making. Anonymous has also claimed (h/t Recorded Future) coup with a release of some Baltimore Police Department information — a small cache, but a cache nonetheless.

Ill-advised, darkly worded (and unfunny) Yik Yak messaging earns a Virginia Tech student a sabbatical in the Blacksburg hoosegow — he appeared to police to be threatening a repeat of that campus's 2007 massacre.

Canadian scareware now sports a more plausible (but still bogus) RCMP threat, replacing the familiar (equally bogus) FBI warning.

Rombertik spyware shows unpleasant wiper capability — it erases an infected disc when it discerns auditing and analysis.

In cyber M&A news, Rapid7 buys NTObjectives, AIS a DC-area firm.

Germany's BND remains under Bundestag scrutiny.