Sikker by Mailinblack is a professional password manager designed to securely manage and store various secrets, including passwords and identifiers associated with URLs. It generates strong passwords and allows users to share them with other users. Sikker uses local encryption, typically with the AES algorithm, to secure data stored on the user's device, with the master password serving as the decryption key. It also offers the ability to store data in the cloud, encrypted via end-to-end encryption, to allow synchronization between multiple devices. Additional security measures, such as password hashing and two-factor authentication, are implemented to enhance data access security. Access is secured by the user's master password, which is neither recorded nor shared. Mailinblack applies a zero-knowledge security protocol, ensuring that they cannot view users' credentials or personal information. Sikker can provide automated analysis of stored passwords to identify compromised, reused, or weak passwords according to current standards. The product is accessible with a master password chosen by the user, which is required to access and decrypt the secrets stored in Sikker. If forgotten, the master password can be reset by the user, subject to approval by the administrator user via the web interface. Sikker is designed to be simple and accessible for businesses and their staff, featuring a refined user interface and intuitive applications, offering top-notch autofill functionality and an advanced single sign-on (SSO) solution for both web and mobile devices.