Explained: How data breach of Justdial's 100 million users was unearthed

In a stock exchange filing on Thursday, Justdial said there had been no data breach of the 100 million users

Peerzada AbrarYuvraj Malik Bengaluru
Data Breach

Last Friday, security researcher Rajshekhar Rajaharia was at home, surfing the web. He landed on the website of Justdial, a provider of local search for different services. 
Rajaharia works with several law enforcement agencies to solve cyber security cases. He immediately realised something was wrong. He found the APIs (application programme interfaces) of the tablet version of Justdial’s website was exposed — this made the personal information of 100-odd million users ‘publicly accessible’. 
This included information such as names, e-mail IDs, mobile numbers, genders, dates of birth, addresses, photos and occupations of the users. “Anyone having access to it (APIs) can grab all the data,” Rajaharia told Business Standard. “I immediately tried to reach the firm  to alert them, but didn’t get a response immediately.” 

Also Read

JustDial data leak exposed personal details of 100 million users: IT expert

Your health app could be sharing your medical data with a host of companies

Prabhat Dairy, Asian Paints, Lupin and Justdial among top stocks to track

How data oiled digital marketing brands but also caused them to slip

Another data breach? Amazon India leaks sellers information in tech error

Reliance Retail's strong run continues, revenue crosses Rs 1.3 tn in FY19

Google-Amazon war ends: YouTube coming to FireTV, Prime Video to Chromecast

M&M, Ford ride together to build mid-sized SUV for India, emerging markets

Jet Airways loses IATA membership; refund process may get affected

Real estate firm owner comes to Jet employees rescue, offers jobs

First Published: Apr 19 2019 | 1:21 AM IST

Explore News

To read the full story, subscribe to BS Premium now, at just Rs 249/ month.

Key stories on are available only to BS Premium subscribers. Already a BS Premium subscriber?LOGIN NOW

Register to