In recent months, security researchers have once again pointed out that an enormous amount of compromised login data is circulating on the internet. We are talking about several billion passwords originating from various data leaks, phishing campaigns, and malware infections.
This does not just affect individual platforms, but users of a wide variety of services – including major providers like Apple, Google, Microsoft, Meta, or payment services. The data is bundled in so-called credential collections and traded in underground forums and on the darknet.
The decisive factor is less the absolute number and more the fact that many of these credentials are still actively used.
What exactly is behind these password collections?
The datasets currently being discussed are not the result of a single new hacker attack. Rather, compromised login data from various sources has been merged over years.
- Previous data breaches at online services
- Phishing attacks
- Devices infected with malware
- Insecure or reused passwords
Why email accounts are particularly critical
Email is the central hub of many digital identities. Passwords are reset, contracts are concluded, and business communication is conducted via email addresses.
Find basics on email security and protection mechanisms here: Email Security & Deliverability
What you should specifically do now
Change passwords: Start with central accounts like email, cloud services, and payment providers. Every service should have its own strong password.
Activate Two-Factor Authentication: Wherever possible, use an additional login via app or hardware key.
Check for breaches: Services like Have I Been Pwned can provide clues as to whether an email address is included in known leaks.
Conclusion
Responsible management of digital access, supplemented by multi-factor authentication and clean infrastructure, significantly reduces risks for both individuals and companies.
