Slylandro Probe Self-Destruct Code
The Slylandro Probe Self-Destruct Code is a code sequence containing a complex set of instructions that cause the Slylandro Probes to engage their self-annihilation circuits. The Slylandro give The Captain the destruct code when he helps them realize the horrible damage done by the probes — caused by them setting the priority for gathering resources to 999. By transmitting the code after initiating standard communication, it is possible to destroy a probe without engaging in combat. Analysis at the Earth Starbase describes the code as using an encryption sequence similar to something called the Rolling-Phung algorithm. Eventually the Slylandro reprogram a returned probe to seek out other probes and transmit the destruct code.
Impact on plot
By transmitting destruct code to any Probe, you get rid of them forever (but lose a source of almost free RUs).