Accesskort

An accesskort is a physical credential used to grant authorized access to buildings, rooms, or systems. In Swedish contexts the term is common; internationally it is known as an access card. The card typically stores or transmits identification data and is read by a card reader connected to an access control system. Accesskort enable organizations to control who may enter specific areas and when.

There are several types: contactless smart cards, proximity cards, magnetic stripe cards, and multi‑purpose cards that combine ID and other functions. The most common modern systems use contactless technology, such as radio frequency identification (RFID) or near-field communication (NFC). Cards may carry data such as a unique identifier, assigned access rights, and the validity period or validity window for entry.

Operation usually involves presenting the card to a reader. The reader forwards data to the access control system, which checks the credentials against a directory and, if permitted, unlocks a door or grants entry. Some setups require additional verification, such as a personal identification number (PIN) or biometric factor.

Lifecycle and management cover issuance, activation, deactivation, and revocation of access rights. Cards may be issued to individuals, groups, or roles, and can be replaced if lost or compromised. Ongoing management includes updating the user directory, adjusting access rights, and auditing access logs. Cards have a finite lifespan and may be renewed or reissued as needed.

Security and privacy considerations include risks of lost cards, cloning, and data collection. Modern systems deploy encryption, mutual authentication, secure key management, and monitoring to detect anomalies. Privacy protections and access policies help minimize unnecessary data collection and ensure appropriate use of the credential.

Standards and integration: Common standards for contactless cards include ISO/IEC 14443 and 15693. Many organizations integrate accesskort systems with broader campus or corporate security, building automation, and, in some cases, payment services.