Data Breach

Data Breach news, analysis, research, how-to, opinion, and video.

marten mickos
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red apple

How to mitigate hackers who farm their victims

Feeling raked over? You’re not alone; someone is probably probing your low hanging fruit right now. CSO covers how hackers farm the enterprise and how companies can mitigate the risks.

Yahoo

Yahoo's claim of 'state-sponsored' hackers meets with skepticism

Yahoo has blamed its massive data breach on a "state-sponsored actor". But the company isn't saying why it arrived at that conclusion. Nor has it provided any evidence.

yahoo headquarters

Va. senator wants SEC probe of massive Yahoo breach

U.S. Sen. Mark Warner, D-Va., on Monday urged the U.S. Securities and Exchange Commission to investigate whether Yahoo met its legal obligations to keep the public and investors informed about a massive breach of 500 million Yahoo...

Yahoo

Here's what you should know, and do, about the Yahoo breach

Yahoo's announcement that state-sponsored hackers have stolen the details of at least 500 million accounts shocks both through scale -- it's the largest data breach ever -- and the potential security implications for users.

Yahoo keynote

Yahoo uncovered breach after probing a black market sale

A hacker's attempt to sell user data he claimed was stolen from Yahoo actually led the company to uncover a far more severe breach.

yahoo mail

Hackers have a treasure trove of data with the Yahoo breach

Thursday's confirmed breach at Yahoo means that a treasure trove of stolen data is very likely circulating on the black market -- potentially putting millions of internet users at risk.

data breach hacker

Verizon learned of massive Yahoo data breach just two days ago

Verizon, now finalizing its $4.8 billion purchase of Yahoo, only learned of the massive data breach at Yahoo two days ago.

Yahoo Corporate

The massive Yahoo hack ranks as the world's biggest -- so far

When Yahoo said on Thursday that data from at least 500 million user accounts had been hacked, it wasn't just admitting to a huge failing in data security -- it was admitting to the biggest hack the world has ever seen.

yahoo mail

Yahoo data breach affects at least 500 million users

A massive breach at Yahoo stole account details from at least 500 million users and is being blamed on state-sponsored hackers.

yahoo mail

Yahoo reportedly to confirm massive data breach

Yahoo is reportedly preparing to confirm a data breach that affects hundreds of millions of accounts.

muddy waters

Navigating the muddy waters of enterprise infosec

Information security finally has executives’ attention, but aligning with business needs is still challenging.

candy strangers

5 social engineering scams employees still fall for

You’ve trained them. You’ve deployed simulated phishing tests. You’ve reminded your employees countless times with posters and games and emails about avoiding phishing scams. Still, they keep falling for the same ploys they’ve been...

Big data

Receive alerts when your data is leaked with this tool

If you’re worried that your data might be in the hands of a hacker, one site is offering a free service that can give you a head’s up.

leaked

Data hoarding site represents the dark side of data breach monitoring

A site that's been warning the public about data breaches might actually be doing more harm than good.

01 intro situations

These ransomware situations can result in colossal outcomes

These real-life scenarios show how sneaky perpetrators can be.

Briefcase full of money

Cybersecurity VCs are holding onto their cash – but that’s OK

Are VCs cooling their interest in cybersecurity companies? CSO investigates a market with just as many challenges and opportunities for investors.

1 noise

7 ways to avoid alert fatigue

Just like when your car alarm goes off incessantly, you don’t always run for the door thinking your car was stolen. If only there was a way to hear for when actual robbers are near your car or in this case network.

security hacker privacy

Hackers are shaping US election coverage with data leaks

Hackers are becoming a major source for political leaks in this year’s presidential election. Tuesday's leak of emails from former Secretary of State Colin Powell has security experts worried that hackers are manipulating U.S. media...

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