1Given the growing importance of number-independent interpersonal communications services as defined in Directive (EU) 2018/1972, it is necessary to ensure that such services are also subject to appropriate security requirements in view of their specific nature and economic importance. 2As the attack surface continues to expand, number-independent interpersonal communications services, such as messaging services, are becoming widespread attack vectors. 3Malicious perpetrators use platforms to communicate and attract victims to open compromised web pages, therefore increasing the likelihood of incidents involving the exploitation of personal data, and, by extension, the security of network and information systems. 4Providers of number-independent interpersonal communications services should ensure a level of security of network and information systems appropriate to the risks posed. 5Given that providers of number-independent interpersonal communications services normally do not exercise actual control over the transmission of signals over networks, the degree of risks posed to such services can be considered in some respects to be lower than for traditional electronic communications services. 6The same applies to interpersonal communications services as defined in Directive (EU) 2018/1972 which make use of numbers and which do not exercise actual control over signal transmission.