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A cyclist rides past a Yahoo sign at the company's headquarters in Sunnyvale, Calif. Photo: Marcio Jose Sanchez / AP

Yahoo's 2013 data breach affected all of its 3 billion user accounts — not just the 1 billion accounts as was initially disclosed in 2016, Verizon disclosed today.

  • Why it matters: Hacks are not always going to be clear-cut at first disclosure, a reminder to be cautious of first accounts of breaches.
  • The big picture: Earlier this year the U.S. Department of Justice charged two Russian spies and two hackers hired by Russians for the breach, marking this an important example of the U.S. government's willingness to hold foreign powers accountable for hacking.

More details:

  • Information affected by the breach included usernames, passwords, and sometimes telephone numbers and dates of birth.
  • This was already the biggest hack in terms of number of users, WSJ reports, and this new disclosure just raises that ceiling further.
  • The company said it found the wider scope of the breach during its integration with Verizon.

Go deeper

CDC: Fully vaccinated people can gather indoors without masks

Photo: Filip Filipovic/Getty Images

People who have been fully vaccinated against COVID-19 can take fewer precautions in certain situations, including socializing indoors without masks when in the company of low-risk or other vaccinated individuals, according to guidance from the Centers for Disease Control and Prevention released Monday.

Why it matters: The report cites early evidence that suggests vaccinated people are less likely to have asymptomatic infection, and are potentially less likely to transmit the virus to other people. At the time of its publication, the CDC said the guidance would apply to about 10% of Americans.

Dan Primack, author of Pro Rata
45 mins ago - Economy & Business

Ripple CEO calls for clearer crypto regulations following SEC lawsuit

Illustration: Sarah Grillo/Axios

Ripple CEO Brad Garlinghouse tells "Axios on HBO" that if his company loses a lawsuit brought by the SEC, it would put the U.S. cryptocurrency industry at a competitive disadvantage.

Why it matters: Garlinghouse's comments may seem self-serving, but his call for clearer crypto rules is consistent with longstanding entreaties from other industry players.

Republican Sen. Roy Blunt will not seek re-election in 2022

Photo: Alex Wong/Getty Images

Sen. Roy Blunt (R-Mo.), widely seen as a member of the Republican establishment in Congress, will not run for re-election in 2022, he announced on Twitter Monday.

Why it matters: The 71-year-old senator is the No. 4-ranking Republican in the Senate, and the fifth GOP senator to announce he will not run for re-election in 2022 as the party faces questions about its post-Trump future.