Network security policies and solutions track and prevent unauthorized access and disruption to a business’s underlying IT infrastructure, including software, data and hardware. Network security uses firewalls and user identification policies to block malicious or unauthorized network activity.
Network security typically starts by providing users a username and password to access the network, its data and software. Users without a username or correct password are blocked. Network administrators set what each user does and doesn’t have access to, with the firewall enforcing those policies.
With growing hybrid and remote work, organizations are adopting new access policies that grant network access from user homes, personal devices and mobile devices. This has led to an increase in adoption of multi-factor authentication, which requires additional checks, including single-use access codes sent through email, phone or text.