ISIS claimed responsibility for the awful massacre in Las Vegas, with its Amaq news service going so far as to give the apparent shooter, Stephen Paddock, the honorific name "Abu Abdul Barr al-Amriki" ("al-Amriki"—the American). Few believe this (the FBI is particularly skeptical). It seems to most very unlikely that Paddock had converted to Islam and responded to calls to strike the unbelievers.
Responsible or not, ISIS has incorporated the attack into their inspirational narrative. It's unusual for them to assert responsibility for crimes they had nothing to do with; some attribute this departure (if such it is) to desperation, and to a desire to reinforce its recent warnings that Muslims should avoid public places in infidel lands.
The attack also inflamed criticism of both Google and Facebook for being conduits of bogus news and rumor-mongering. Both platforms are clearly on their way to being considered news providers, not simply content-neutral platforms designed to exhibit whatever people happen to be saying online. Google's highlighting of search results from dubious sources prompts skepticism of Mountain View's algorithmic approach to news.
The UK is using a heavy hand with extremist content. A new law is expected to expose repeat viewers of terrorist sites to up to fifteen years in prison.
The Equifax breach appears to have affected millions more than initially believed.
The US is said to have conducted a shot-across-the-bow DDoS attack against North Korea at the end of September. (A Russian telco has since given the DPRK more bandwidth.)