To allow for the assignment of user access rights, financial entitiesas defined in Article 2, points (a) to (t) referred to in Title II of this Regulation should establish strong measures to ascertain the unique identification of individuals and systems that will access the financial entity’s information. A failure to do so would expose financial entitiesas defined in Article 2, points (a) to (t) to potential unauthorised access, data breaches, and fraudulent activities, thus compromising the confidentiality, integrity, and availability of sensitive financial data. While the use of generic or shared accounts should exceptionally be permitted under circumstances specified by financial entitiesas defined in Article 2, points (a) to (t), financial entitiesas defined in Article 2, points (a) to (t) should ensure that the accountability for actions taken through those accounts is maintained. Without that safeguard, potential malicious users would be able to hinder investigative and corrective measures, leaving financial entitiesas defined in Article 2, points (a) to (t) vulnerable to undetected malicious activities or non-compliance penalties.