This value identifies which of five privilege tiers a given row of the security table grants, ranging from read-only-sysgroup up to high-security-access. Admins use this table to map different community strings (agSecCommunity) to different access levels, so distinct manager stations get an appropriately matched degree of read or write access. For example, a row with agSecSecurityLevel set to administrator-access(4) would be paired with a community string reserved for full-privilege management staff.