If You Reuse Passwords, the Zoomcar Leak of 3.5 Million Records Should Worry You

HEROIC analysts identified the Zoomcar breach while monitoring dark web marketplaces where stolen databases are bought and sold. The breach occured in July 2018 and exposed 3,588,582 records from the Indian self-drive car rental company. The stolen data included full names, email addresses, phone numbers, IP addresses, and password hashes, making this one of the more detailed personal data exposures from that period. The database was later listed for sale in 2020, bringing renewed attention to the incident.

How Your Name, Phone Number, and Email Together Enable Identity Theft

When a breach exposes your name, phone number, and email address together, attackers have enough to impersonate you or target you with highly convincing scams. This combination is accessable to criminals who purchase breach databases and use them to craft phishing messages that look legitimate because they already know who you are. Attackers can also use your phone number for SIM swapping attacks, where they convince your mobile carrier to transfer your number to a device they control, giving them access to two-factor authentication codes on your accounts.

What Was Exposed in the Zoomcar Breach

• Email Address
• IP Address
• Phone Number
• First Name
• Last Name
• Password Hash

Why 3.5 Million Indian Car Rental Records Is a Significant Risk

India has one of the fastest-growing digital populations in the world, which makes large Indian database breaches especially valuable to criminals. The Zoomcar data includes phone numbers, which are closely linked to bank accounts and payment apps in India. Even though the passwords were stored as bcrypt hashes, which are harder to crack than plaintext, determined attackers with modern hardware can still recover weak or common passwords. Anyone who reused their Zoomcar password elsewhere remains at risk of credential stuffing and account takeover. The seperate concern with bcrypt hashes is that they slow down attackers but do not stop them entirely.

How a Database Breach Works

A database breach occurs when an attacker gains unauthorized access to a company's data systems, typically by exploiting a software vulnerability or using stolen credentials to access an administrative panel. Once inside, the attacker makes a copy of the user database and either sells it, publishes it, or uses it directly. In the Zoomcar case, the data was sold on a dark web marketplace two years after the initial breach, meaning the company's former users were exposed without knowing it for an extended period.

Check If Your Data Was Exposed

HEROIC's free breach scanner covers more than 400 billion records from known data breaches around the world. If you had a Zoomcar account or want to check any email address for exposure in this or other breaches, run a free search with HEROIC today and see exactly what information about you is out there.