*By Carlo Versano*
Facebook shares dropped Friday afternoon after the company announced that 50 million accounts may have been compromised by hackers exploiting a security vulnerability.
Guy Rosen, the company's VP of product management, said the breach was discovered on Tuesday and affected its "View As" feature, which allows people to see what their own profile looks like to someone else. Rosen said the vulnerability has been patched.
"We’re taking this incredibly seriously and wanted to let everyone know what’s happened and the immediate action we’ve taken to protect people’s security," Rosen, wrote in a [blog post](https://newsroom.fb.com/news/2018/09/security-update/) on Friday.
Facebook ($FB) discovered that unknown attackers manipulated a piece of code that allowed them to steal security tokens that usually keep accounts logged in.
The post was light on detail and was seemingly intended to show the company's efforts at transparency, just months after it was pilloried for a mishandling of the Cambridge Analytica breach.
After that scandal, CEO Mark Zuckerberg [said](https://m.facebook.com/zuck/posts/10104712037900071) in a Facebook post, "We have a responsibility to protect your data, and if we can't, then we don't deserve to serve you."
President Joe Biden toured a state-of-the-art coronavirus vaccine plant Friday as extreme winter weather across broad swaths of the U.S. handed his vaccination campaign its first major setback.
From Wall Street to Silicon Valley, these are the top stories that moved markets and had investors, business leaders, and entrepreneurs talking this week on Cheddar.
New York State Assembly Majority Leader Crystal Peoples-Stokes believes 2021 is the year that the Empire State will get marijuana legalization done.
Cheddar has pulled together a rough timeline of the GameStop tale, from its inauspicious beginnings to becoming one of the biggest stories out of Wall Street since the crash of the housing market.
The UK Supreme Court has ruled that Uber drivers should be classed as “workers” and not self-employed.
Power was restored to more homes and businesses in Texas after a deadly blast of winter this week overwhelmed the electrical grid and left millions shivering in the cold.
Cheddar looks at the players in the GameStop stock saga taking part in the House Committee on Financial Services hearing.
The number of Americans applying for unemployment aid rose last week to 861,000, evidence that layoffs remain painfully high despite a steady drop in the number of confirmed viral infections.
Anger over Texas' power grid failing in the face of a record winter freeze is mounting. Nearly 3 million customers in the energy capital of the U.S. woke up Wednesday still without power.
Cheddar Climate is highlighting the automotive industry and the steps its leaders are taking to reduce carbon emissions.
