SJ AB

Profile narrative

SJ AB, commonly known as SJ, is a Swedish passenger rail company whose core business is operating and selling train travel services. It provides passenger rail transport in Sweden, including long-distance intercity services, high-speed services, regional services, and night trains. Its activities are centred on rail passenger mobility rather than rail infrastructure ownership or management. SJ sells tickets and manages customer-facing travel services for passengers using the Swedish rail network.

SJ is a prominent organisation in Sweden’s passenger rail sector and is commonly associated with national rail travel. Its service portfolio has included branded train categories such as high-speed and long-distance services, supported by ticketing and reservation systems for passengers. A distinguishing attribute is its role as a train operating company within Sweden’s wider transport system, where rail infrastructure is handled separately from train operations. SJ is also known by the abbreviation SJ and has historically been associated with Sweden’s state railway tradition.

SJ AB is owned by the Swedish state and is structured as a state-owned company. In 2023, the company was affected by a cyber incident in which the pro-Russian hacktivist group NoName057(16) carried out a DDoS attack against SJ AB. The group stated that the attack was motivated by Swedish authorities’ permission for a Quran burning in Stockholm and Sweden’s support for Ukraine. The attack disrupted SJ’s website and knocked it offline, placing the company within a broader campaign that also targeted Swedish public and financial-sector organisations.

Incidents

1 incident linked to this organisation.