Earlier this month, AT&T was hit by the largest telecom hack ever. Not long after, Sydney Sweeney’s phone number was stolen by criminals, who used it to hack her social media and promote a memecoin. With how much sensitive data telecom companies have on us, why is their security so bad? And how can we protect ourselves?  Guests: Joseph Cox, investigative reporter and cofounder of 404 media. Want more What Next TBD? Subscribe to Slate Plus to access ad-free listening to the whole What Next family and all your favorite Slate podcasts. Subscribe today on Apple Podcasts by clicking “Try Free” at the top of our show page. Sign up now at slate.com/whatnextplus to get access wherever you listen. Learn more about your ad choices. Visit megaphone.fm/adchoices