A ransomware attack on supply chain software giant Blue Yonder continues to cause significant disruption to its customers, with multiple businesses affected, including major retailers and a global coffee chain. The attack, which hit Blue Yonder's managed services hosted environment on November 21, has resulted in a prolonged outage, with the company still working to restore normal business operations for its impacted customers.

In a brief update to its cybersecurity incident page on Sunday, Arizona-based Blue Yonder said it is making "good progress" in its recovery from the attack. However, the company declined to provide specific details on the number of customers affected or when they can expect to be back online. Despite this, several major businesses have come forward to confirm that they have been impacted by the attack, including U.K. supermarket chains Morrisons and Sainsbury's, as well as U.S. coffee giant Starbucks.

The attack has resulted in significant disruptions to the affected businesses, with Starbucks forced to manually calculate employees' pay due to the outage. This highlights the critical nature of Blue Yonder's supply chain software, which is used by many businesses to manage their logistics and operations. The prolonged outage has likely resulted in significant costs and lost productivity for the affected companies, and raises concerns about the vulnerability of critical infrastructure to cyber attacks.

Blue Yonder's response to the attack has been criticized by some for its lack of transparency, with the company declining to provide specific details on the attack or the number of customers affected. This lack of transparency has made it difficult for affected businesses to plan and respond to the outage, and has raised concerns about the company's ability to respond to cyber threats.

The attack on Blue Yonder is the latest in a series of high-profile ransomware attacks on critical infrastructure providers, and highlights the need for businesses to prioritize cybersecurity and invest in robust defenses against cyber threats. As the attack continues to cause disruption, it remains to be seen how quickly Blue Yonder can restore normal business operations for its customers, and what long-term impact the attack will have on the company's reputation and operations.

The incident also raises questions about the broader implications of ransomware attacks on supply chain operations, and the need for greater collaboration and information sharing between businesses and governments to combat cyber threats. As the attack on Blue Yonder continues to unfold, it is clear that the incident will have significant and far-reaching consequences for the technology and business communities.