RTX 8-K: Smart Summary

RTX Corporation disclosed a ransomware cybersecurity incident detected on September 19, 2025, affecting its Multi-User System Environment (MUSE) passenger processing software used by airlines and airports. The Company states the incident has not had a material impact and is not reasonably expected to have a material impact on its financial condition, business operations, or results of operations.

• On September 19, 2025, RTX Corporation became aware of a ransomware incident on systems supporting its MUSE passenger processing software
• MUSE software enables multiple airlines to share check-in, gate, and baggage handling resources at airports; MUSE airport systems operate outside the RTX enterprise network on customer-specific networks
• Upon detection, the Company activated its incident response plan and engaged internal and external cybersecurity experts; domestic and international law enforcement and certain government agencies have been notified
• Affected airline customers have shifted to back-up or manual processes and have experienced certain flight delays and cancellations
• Investigation and assessment are ongoing; the incident has not had a material impact and is not reasonably expected to have a material impact on the Company's financial condition, business operations, or results of operations