Invasive (adjective)

1. Tending to spread aggressively, especially in a harmful way.
2. Intrusive and tending to violate privacy or individuality.

Origin:

Late 19th century: from latin invadere "to invade" + -ive.

Examples:

1. The invasive plant species has spread quickly and is causing harm to the ecosystem.
2. The invasive surgery required a long recovery period.
3. The new security measures were invasive and caused concern among the employees.
4. The invasive questions made her feel uncomfortable.
5. The invasive technology has raised privacy concerns.