CDSL data breach: Personal data of 44 million investors like PAN, demat details leaked

New Delhi: A flaw in CDSL Ventures Limited (CVL), a subsidiary of Central Depository Services (India) Limited (CDSL), exposed the personal and financial information of over 43 million Indian investors online. What is troubling is that this data was exposed twice in a 10-day period. On October 19, the cyber security team informed CERT-In and NCIIPC about the incident. It took about a week for the organization to resolve the issue.

According to CyberX9, the problem could have been resolved in two hours. This breach will have an impact on investors as they will almost certainly become the target of phishing attacks, in which hackers impersonate brokers, banks and corporations to cheat them out of their money.

In early October 2021, CyberX9’s research team uncovered a serious security vulnerability in the KYC wing of CDSL. According to their findings, CVL was disclosing highly sensitive personal and financial data of 43.9 million Indian investors.

According to cyber security firm SAID, ‘the people whose data was exposed were those who did KYC of their market securities,’ which also said that the problem discovered was an authorization vulnerability in the KYC API of a public CDSL, resulting in massive amounts of sensitive data being exposed on the Internet

The cybersecurity team discovered a comprehensive bypass to the measure that CDSL implemented on October 29 to repair the previously reported issue. “Both times the data exposed was of people who had performed KYC on their market securities… Similar to the previous time, the issue discovered was an authorization vulnerability in the KYC API of a public CDSL, causing massive amounts of damage across the internet. Sensitive data exposed,” CyberX9 reported.

Personal information such as full name, complete PAN number, gender, marital status, father/full spouse’s name, date of birth, nationality, complete residential address, complete permanent address, contact number, email address and business details were included. Data exposed by security flaw.

It also included sensitive financial data such as the amount of annual income tax return submitted, net worth (with the date it was updated), demat account number, broker name and CDSL client ID.

According to the cyber security team, the information disclosed by CDSL could be a virtual goldmine for phishing and could lead to business email agreement (BEC) scams, in which hackers use brokers, banks and enterprises to defraud individuals and corporations. operate as. Sending money to fraudsters. This can also lead to extortion and tax refund scams.

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