Settlement services at Central Depository Services (India) were affected on Friday due to cyber attacks. Brokers said services such as pay-in, pay-out, pledged, or unpledged securities for margin were down. A malware attack is a cyberattack where malicious software executes unauthorised actions on the victim’s system. The depository said it had detected malware on a few of its internal machines. The CDSL team has reported the incident to the relevant authorities and is working with its cyber security advisors to analyse the impact.