60% of MD5 Password Hashes Are Crackable In Under an Hour

Why It Matters

The findings prove that MD5 is no longer viable for protecting passwords, putting billions of breached accounts at risk and compelling organizations to adopt stronger authentication mechanisms.

Key Takeaways

• RTX 5090 cracks 60% of MD5 passwords in under an hour.
• Nearly half of MD5 hashes break in under 60 seconds.
• Password predictability accelerates cracking beyond hardware improvements.
• 2026 study shows cracking speed up a few percent since 2024.
• Experts call for modern hash algorithms and multi‑factor authentication.

Pulse Analysis

The Kaspersky analysis highlights a stark reality: legacy hashing algorithms like MD5 cannot withstand today’s GPU‑driven attacks. By leveraging the raw computational power of an Nvidia RTX 5090, attackers can enumerate common password patterns at unprecedented speeds, turning what once required days of processing into minutes. This shift underscores the importance of evaluating not just algorithmic strength but also the hardware landscape that continuously reshapes threat models.

Beyond raw processing power, the study reveals that password predictability remains a critical weakness. Kaspersky examined over 200 million leaked credentials and identified recurring structures—such as predictable substitutions and common phrases—that enable attackers to prune large portions of the keyspace before brute‑forcing. Even modest improvements in GPU performance compound these gains, meaning that a password that was marginally secure in 2024 is now marginally less so. As breach data accumulates, the feedback loop between exposed passwords and refined cracking dictionaries accelerates, eroding the already thin margin of safety provided by fast hashes.

For enterprises and service providers, the takeaway is clear: migrate away from MD5 and other fast hashes toward memory‑hard functions like Argon2 or bcrypt, and layer authentication with multi‑factor solutions. Regulatory pressures and user expectations increasingly demand robust credential protection, and the cost of a breach—both financial and reputational—far outweighs the implementation effort. By modernizing login infrastructures now, organizations can break the cycle of predictable passwords and GPU‑fueled attacks, safeguarding user data in an era where computational power continues to surge.