Comcast assigned every mobile customer the same unchangeable PIN to protect against SIM hijack attacks: 0000

If someone wants to steal your phone number — say, to intercept the two-factor authentication SMSes needed to break into your bank account or other vital service — they hijack your SIM by impersonating you to your phone company (or by bribing someone at the company to reassign your phone number to them), and this has made the security of phone numbers into a top concern for security experts and telcoms companies, as there are millions of dollars at stake.

Largest dump in history: 2.7 billion records; 773 million of them unique; 140 million never seen before

A dump called "Collection #1" has been released by parties unknown, containing email addresses and cracked passwords: in its raw form, it contains 2.7 billion records, which Troy "Have I Been Pwned" Hunt (previously) de-duplicated to come up with 773 million unique records — of those 140,000,000 email addresses and 10,000,000 passwords have never been seen in the HaveIBeenPwned database before.

Facebook says giving Cambridge Analytica info on 50 million people wasn't a "breach." It was a feature

Writing for Bloomberg Businessweek, Paul Ford says Facebook's "not-a-breach" of personal information on 50 millions of its users is just the latest example of why it's time for a digital protection agency.

Facebook's recent debacle is illustrative. It turns out that the company let a researcher spider through its social network to gather information on 50 million people.

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Decision to retain personally identifying information puts Australian census under threat

Without an accurate census, it's virtually impossible to make good national policy, which is why so many countries make census participation mandatory (when former Canadian Prime Minister Stephen "Dumpster Fire" Harper made the long-form census optional, statisticians and policy wonks quailed) — which is why the Australian government's decision to collect and retain — for 10 years — personally identifying information on census participants is such a big deal.

Vtech breach dumps 4.8m families' information, toy security is to blame

Vtech is a ubiquitous Hong Kong-based electronic toy company whose kiddy tablets and other devices are designed to work with its cloud service, which requires parents to set up accounts for their kids. 4.8 million of those accounts just breached, leaking a huge amount of potentially compromising information, from kids' birthdays and home addresses to parents passwords and password hints.