Krack attack breaking WPA2. Serious flaw in widely used TPM encryption chip. Google offers 'advanced protection' on accounts.

Two Belgian researchers (jeej Belgium) have been able to break the Wifi encryption standard WPA2. Depending on the specifics of each implementation, they can listen in on traffic, catch credentials or change website content. Pretty much all wifi enabled devices will need to be updated.
The link above points to the website of the researchers, providing a great explanation. This post gives a good pragmatic overview of the consequences.

The 'Trusted Platform Module', or TPM, is a chip designed to secure encryption keys in many PC's and smartcards. With the flaw an attacker can work out the private key from having just the public key. Which is, well, horrible. All the affected devices will need firmware updates or be replaced.
The link article above gives a good high-level overview, this article dives into more details.

It happened four years ago but only now came out in interviews. A breach like this is especially bad since it gives the attackers a list of yet unpatched bugs which they can then start exploiting elsewhere. A good reminder to all of us to keep our bug tracking systems very secure.

It forces you to use hardware security keys, prevent OAuth access from external services, and has a much more elaborate account recovery process in case you loose access.
I presumed it was aimed at high-level targets like politicians or whistleblowers, but apparently anyone can opt-in.

Fun experiment of a 'Git bomb'. The repository looks normal, but when you check it out it starts to grow until you run out of RAM or CPU. Some people on Hackernews had fun with it, growing it to 24 gigs or even 65 gigs of RAM until it crashed :-)

Virgin's Richard Branson shares two stories of high-level cons that he was the subject of. One friend lost $2 million, thinking he was actually helping Branson out, and Branson himself avoided a con worth $5 million.