Self-protection
Actions or behaviors someone uses to shield themselves from harm, blame, or emotional pain—often unconsciously.

Defensive strategies—psychological, behavioral, or social—that individuals employ to protect themselves from perceived threat, blame, shame, or emotional injury. These may include denial, rationalization, avoidance, or deflection of responsibility. Self-protection operates both consciously and unconsciously across interpersonal, emotional, and social contexts.
What this means in real life
When a student who failed a test immediately blames the teacher's unfair questions rather than acknowledging they didn't study, they're using self-protection to shield their self-image from the sting of failure.
What it isn’t
Self-protection is not the same as healthy self-care or setting boundaries. It's a defensive reaction to threat or blame, often automatic and sometimes counterproductive, whereas genuine self-care is intentional and constructive.
Commonly misused online
People often use 'self-protection' to justify any defensive behavior as justified or necessary, when the term simply describes the mechanism—not whether it's healthy, proportionate, or warranted in a given situation.