The Week in Tech: Facebook Is in the News. Again.

The stolen data included names, addresses and encrypted credit card details of hotel customers. Hackers also stole travel histories and passport numbers of a smaller group of guests. It’s one of the bigger cybersecurity breaches in history. (Then again, the Facebook breach affecting 30 million accounts, announced last September, was nothing to sneeze at.)

■ Another company having a bad news week: Huawei. Meng Wanzhou, a top executive and daughter of the company founder, was arrested last week in Canada at the request of the United States, in a move that will certainly increase tensions between the two countries.

Canada’s Justice Department said she was sought for extradition to the United States but did not give a reason. The United States government has long expressed concern about Huawei’s surveillance capabilities because of the company’s close ties to the Chinese government.

• O.K., O.K., I’ll lighten things up. I wrote a column this week about how I tried to turn my food-obsessed dog, Max, into an Instagram celebrity — and failed. I tried everything: kissing up to influencers, getting professional consultations and even buying bots, but no dice. Here’s what I learned about the brutal space that is Instagram.

• I love New York Times crossword puzzles, and I know many of you do, too. So it was a delight to hear from Sam Ezersky, an assistant editor of puzzles, about the tech tools uses to create the crosswords as well as how puzzle-solving has changed in the smartphone era.

• This week there’s been some buzz around 5G, the fifth-generation wireless network from cellular carriers, meaning a faster cellular connection might be closer to reality.

Both AT&T and Verizon Wireless announced they would support a yet-to-be-named 5G phone from Samsung next year. The 5G network will theoretically be so fast that people will be able to download movies in seconds. (I’ll believe it when I see it — I still struggle to get a good 4G LTE signal in San Francisco.)

Brian X. Chen is the lead consumer technology writer. He reviews products and writes Tech Fix, a column about solving tech-related problems. Before joining The Times in 2011 he reported on Apple and the wireless industry for Wired. @bxchen