"Cracked" versions of software or those activated with illegitimate keys may be unstable, prone to crashes, or lack essential updates and bug fixes.
The term "hot" in the context of license keys typically refers to keys that are actively being shared, often through unofficial channels like forums, "crack" sites, or keygen generators. The motivation behind seeking these keys is usually to avoid the cost of a legitimate license.
Using software without a valid license is a violation of copyright law and can lead to legal consequences.