The BigBasket Data Breach

9 Aug 2025

Orange Flower
Orange Flower
Orange Flower

The BigBasket Data Breach: A Wake-Up Call for India’s Cybersecurity Landscape

In November 2020, Indian grocery delivery giant BigBasket fell victim to a massive data breach that exposed the personal information of over 20 million users. The incident was not just a red flag for tech companies but a wake-up call for every internet user in the country. Here's how it unfolded, and why it matters to all of us.

 

The Breach: What Happened?

It began when a threat intelligence firm, Cyble, detected BigBasket user data being sold on the dark web. This dataset included names, email IDs, phone numbers, addresses, dates of birth, IP addresses, and even hashed passwords. What made this breach so concerning wasn’t just the scale - it was the kind of data stolen, which could be weaponized for identity theft, phishing attacks, and account takeovers.

BigBasket responded by filing a complaint with the Cyber Crime Cell in Bengaluru and initiating an internal investigation. However, by then, the stolen data was already in circulation on dark web forums for as little as $40.

 

Why It Matters

This incident is significant for several reasons:

·       Widespread Impact: With 20 million users affected, it was one of India’s largest breaches at the time, targeting a widely used consumer app.

·       Low Awareness: Many users didn’t know how to check if their data was compromised or what steps to take next.

·       Rising Sophistication of Cybercriminals: The breach highlighted how attackers don’t just target banks or IT firms. Any company handling large-scale user data is a potential target.

·       Regulatory Pressure: It also reignited debates around India’s long-pending Data Protection Bill and the need for stricter cybersecurity compliance in startups and consumer tech companies.

 

What Should We Learn from This?

Even though this was a breach on a company level, it carries valuable lessons for all:

·       Use Strong, Unique Passwords for every service. Tools like password managers can help.

·       Enable Two-Factor Authentication (2FA) wherever available.

·       Be cautious of emails or messages that ask for personal information - phishing often follows breaches.

·       Regularly check if your email or credentials have been compromised using tools like HaveIBeenPwned (http://haveibeenpwned.com/)

 

For companies:

·       Prioritize penetration testing, employee training, and endpoint security.

·       Comply with emerging data protection regulations and invest in incident response mechanisms.

 

Conclusion

The BigBasket breach is a stark reminder that cybersecurity is not optional. In a digital-first India, businesses must invest in securing user data, and individuals must stay informed and vigilant. After all, in cybersecurity, prevention is always better than reaction.

 

Sources

  1. Economic Times - BigBasket user data breach

  2. Cyble Blog - Dark Web Monitoring

  3. India Today Tech - BigBasket confirms data breach

  4. Have I Been Pwned - Search tool for breached accounts

  5. CERT-In - Indian Computer Emergency Response Team

CySecK, 1st floor, SSCU Annexe,

Next to IAP Dept., Badam Marg,

Indian Institute of Science, Bangalore – 560012

9071883373; 9071833553

contact.cyseck@fsid-iisc.in

Supported By

2025 CysSecK. All Rights Reserved

CySecK, 1st floor, SSCU Annexe,

Next to IAP Dept., Badam Marg,

Indian Institute of Science, Bangalore – 560012

9071883373; 9071833553

contact.cyseck@fsid-iisc.in

Supported By

2025 CysSecK. All Rights Reserved

CySecK, 1st floor, SSCU Annexe, Next to IAP Dept., Badam Marg,

Indian Institute of Science, Bangalore – 560012

9071883373; 9071833553

contact.cyseck@fsid-iisc.in

Supported By

2025 CysSecK. All Rights Reserved

CySecK, 1st floor, SSCU Annexe,

Next to IAP Dept., Badam Marg,

Indian Institute of Science,

Bangalore – 560012

9071883373; 9071833553

contact.cyseck@fsid-iisc.in

Supported By

2025 CysSecK. All Rights Reserved