RTX Corp

Filing excerpt“On September 19, 2025, RTX Corporation (the " Company ") became aware of a product cybersecurity incident involving ransomware on systems that support its Multi-User System Environment (" MUSE ") passenger processing software. On September 19, 2025, RTX Corporation (the “Company”) became aware of a product cybersecurity incident involving ransomware on systems that support its Multi-User System Environment (“MUSE”) passenger processing software. This software enables multiple airlines to share check-in and gate resources at airports, including baggage handling. The MUSE airport systems operate outside of the RTX enterprise network, residing on customer-specific networks.”