I don't know if you are aware of this yet; the Twitter account for Jon Oliver's Last Week Tonight show has been hacked.
You might wanna call Twitter on this one.
UPDATE -10:07pm: It appears the group behind the hack were also most recently behind the hacking of some YouTube stars, Mark Zuckerberg and Jack Dorsey of Twitter:
From Hollywood Life:
2016 — OurMine hacked the Twitter accounts of actor, Channing Tatum, 36, Wikipedia co-founder, Jimmy Wales, 50, Pokemon Go creator, John Hanke, 50, Twitter co-founder, Jack Dorsey, 40, Google CEO, Sundar Pichai, 44, Facebook co-founder Mark Zuckerberg, 32, [whose Pinterest was also hacked], and Buzzfeed and TechCrunch‘s websites.
Apparently their MO is about advertisement for their "services":
OurMine identifies themselves as a “security group.” It is a type of hacker group that uses the accounts of high profile celebrities and influencers to advertise their brand name and services. Their website currently appears to be under construction, but at one point, [June 2016] it had descriptions of its offerings. “Personal and enterprise security checks, with a $1,000 Paypal price tag for a website scan, and $5,000 for a full company audit,” were some of the services offered by OurMine, according to Wired.
I think I'd better activate two-step verification - like NOW.
UPDATE: 10:28pm - The Hollywood Reporter reports that several HBO accounts have been hacked by the same group including the Last Week Tonight account.