Paranoid Personality Disorder as a pervasive distrust and suspiciousness of others such that their motives are interpreted as malevolent, beginning by early adulthood and present in a variety of contexts, as indicated by four (or more) of the following:
suspects, without sufficient basis, that others are exploiting, harming, or deceiving him or her;

is preoccupied with unjustified doubts about the loyalty or trustworthiness of friends or associates;

is reluctant to confide in others because of unwarranted fear that the information will be used maliciously against him or her;

reads hidden demeaning or threatening meanings into benign remarks or events;

persistently bears grudges, i.e., is unforgiving of insults , injuries, or slights perceives attacks on his or her character or reputation that are not apparent to others and is quick to react angrily or to counterattack;