OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has assigned a Financial Strength Rating (FSR) of A- (Excellent) and a Long-Term Issuer Credit Rating (Long-Term ICR) of “a-” to Pittstown Cooperative Fire Ins. Co. (Pittstown). The outlook assigned to these Credit Ratings (ratings) is stable. Concurrently, A.M. Best has affirmed the FSR of A- (Excellent) and the Long-Term ICR of “a-” of Security Mutual Insurance Company (Security Mutual). The outlook of these ratings is stable. Both companies are domic