TAINTED

verb

1. To contaminate or corrupt (something) with an external agent, either physically or morally.
2. To spoil (food) by contamination.
3. To be infected or corrupted; to be touched by something corrupting.

verb

1. To damage, as a lance, without breaking it; also, to break, as a lance, but usually in an unknightly or unscientific manner.
2. To hit or touch lightly, in tilting.
3. To thrust ineffectually with a lance.

adjective

1. Corrupted or filled with imperfections.
2. (of data) Originating from an untrusted source.