You wake up on New Year’s morning, ready to embrace the promises of a new year, but the news is far from cheerful. Imagine the surprise of La Poste’s customers when they discover that their banking, messaging, and delivery services are paralyzed by a cyberattack. What happened and what are the consequences for the company and its customers?
The 3 key points not to miss
- A cyberattack hit La Poste and its subsidiaries on January 1, 2026, impacting La Banque Postale, Colissimo, and the laposte.net messaging service.
- Customers of La Banque Postale cannot access their online accounts, although some payments remain possible.
- Colissimo and electronic messaging services are also disrupted, affecting online operations and deliveries.
The new attack hits La Poste
Shortly after a previous cyberattack, La Poste faces a new IT offensive. On the night of December 31 to January 1, 2026, the group confirmed it had suffered an attack that disrupts several of its major activities. La Banque Postale, Colissimo, and the laposte.net messaging service are affected. This situation plunges the company into a persistent crisis, similar to the one that marked the end of 2025.
The previous cyberattack, which occurred on December 22, had already caused significant disruptions by targeting a group datacenter. It was a DDoS attack, consisting of overwhelming a network with requests to render it inoperative. This new attack seems to be of similar magnitude, although the exact details remain to be confirmed.
Impact on La Banque Postale customers
For La Banque Postale customers, the inability to access their online accounts is particularly concerning. The bank’s digital services are temporarily inaccessible, although online payments authenticated by SMS and card transactions remain operational. This situation has been confirmed by numerous users on various platforms.
The disruptions also affect WERO transfer services, leaving customers searching for alternative solutions for their daily financial transactions.
Colissimo and messaging affected
Colissimo, La Poste’s parcel division, sees its connected services operating in “degraded” mode. Online activities, such as postage, returns, and cancellations, are disrupted. Although the New Year’s holiday reduces the immediate impact on deliveries, the situation could become more complicated in the coming days if the problems persist.
Meanwhile, the laposte.net email service is also facing interruptions, with users unable to log into their accounts.
Context of recent cyberattacks
La Poste is no stranger to cyberattacks. At the end of December, a DDoS attack had already paralyzed its infrastructure, causing significant disruptions. The pro-Russian group NoName057(016) claimed responsibility for this attack, although it has not been officially confirmed by La Poste. This type of attack requires considerable resources, suggesting the involvement of a group supported by a significant power.
The repetition of these incidents underscores the importance for La Poste to strengthen its digital defenses and improve its resilience against cyber threats. These events highlight the growing challenges faced by large companies in an increasingly connected world.