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Biggest data breaches

Not long ago, a breach that compromised the data of a few million people would have been big news. Now, breaches that affect hundreds of millions or even billions of people are far too common.

About 3. The smallest incident on this list involved the data of a mere million people. CSO compiled this list of the biggest 21 st Century breaches using simple criteria: The number of people whose data was compromised.

We also made a distinction between incidents where data was stolen for malicious intent and those where an organization inadvertently left data unprotected and exposed. Twitter, for example, left the passwords of its million users unmasked in a log, but there was no evidence of any misuse.

So, Twitter did not make this list. Without further ado, here, AAn in alphabetical order, are the 15 biggest data breaches in recent history, including who was affected, who was responsible, and how the companies responded. Date: October Impact: The stolen data spanned 20 years on six databases and included names, email addresses and passwords.

Criticism:

The weak SHA-1 hashing algorithm protected most Multinational Companies An Organization those passwords. Canva says the hackers managed to view, but not steal, files with partial credit card and payment data. The suspected culprit s — known as Gnosticplayers — contacted ZDNet to boast Multinationzl the incident, saying that Canva had detected their attack and closed their data breach server. The attacker also claimed to have gained OAuth login tokens for users who signed in via Google.

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The company confirmed the incident and subsequently notified users, prompted them to change passwords, and reset OAuth tokens. However, according to a later post by Canvaa list of approximately 4 million Canva accounts containing stolen user passwords was later decrypted and shared online, leading the company to invalidate unchanged passwords and notify users with unencrypted passwords Multinational Companies An Organization the list. The online auction giant said hackers used the credentials of three corporate employees to access its network and had complete access for days—more than enough time to compromise the user database.]