Digital signature security prevents unauthorized access to trade scrips; report compromised certificates and follow secure password and network practices. Protection of digital identities depends on secure custody and use of Digital Signature Certificates or Aadhaar e signatures; adopt strong passwords, do not share sensitive credentials, avoid public Wi Fi for official logins, beware phishing and suspicious attachments or domains, and ensure duty credit scrips and related instruments are reflected in online modules. On suspected unauthorized DSC issuance contact the licensed Certifying Authority and report to the Controller of Certifying Authorities, and industry bodies should sensitize members to prevent online theft of duty credit instruments.