NET1665 - Using default SNMP community names - 'Community set to Public or Private'
The network device must not use the default or well-known SNMP community strings public and private. Network devices may be distributed by the vendor pre-configured with an SNMP agent using the well-known SNMP community strings public for read only and private for read and write authorization. An attacker can obtain information about a network device using the read community string 'public'. In addition, an attacker can change a system configuration using the write community string 'private'.
Configure unique SNMP community strings replacing the default community strings.