All You Need to Know About Paranoid Personality Disorder.
Paranoid personality disorder (PPD) is a type of eccentric personality disorder where people are overly suspicious and mistrustful. This can affect daily life as you may believe others want to harm you. Some common traits include being reluctant to confide in others, holding grudges, and reading hidden threats in innocent comments. It affects 1.2% to 4.4% of people worldwide. Treatment can be tough since you may not trust others, including healthcare professionals, but they’ll work with you to build trust.

References:
https://www.healthline.com/health/paranoid-personality-disorder