General leakiness:
* Leaky: This is the most straightforward adjective for something that leaks.
* Permeable: Describes something that allows liquids or gases to pass through it.
* Porous: Similar to permeable, but often describes a material with many tiny holes.
Specific types of leaks:
* Confidential: Describes a leak of private or secret information.
* Secret: Similar to confidential, but with a greater emphasis on secrecy.
* Unintentional: Describes a leak that happened by accident.
* Deliberate: Describes a leak that was done on purpose.
* Major: Describes a large or significant leak.
* Minor: Describes a small or insignificant leak.
* Slow: Describes a leak that happens gradually.
* Sudden: Describes a leak that happens quickly and unexpectedly.
Other options:
* Breach: Can be used to describe a leak in a security system or a breach of confidentiality.
* Compromised: Describes something that has been weakened or made vulnerable due to a leak.
The best adjective to use will depend on the specific situation and what you want to emphasize.