"The program continues to track a cybersecurity vulnerability risk stemming from the F-15EX design, derived from FMS [Foreign Military Sales] aircraft and, according to the program, not designed to US Air Force cybersecurity requirements," the report said.
The F15EX is planned to be a complementary platform to the fifth-generation F35 and F-22 stealth aircraft operating in highly contested environments.
In July 2020, the US Air Force and Boeing signed a $1.2 billion contract to build the first eight jets capable of carrying more weapons than any other fighter in its class and launching hypersonic weapons weighing up to 7,000 pounds.
The first two F-15EX fighter jets were delivered to Eglin Air Force Base last year.