Secure DNS: a fast and efficient way to secure telework environments beyond the VPN
The use of secure DNS platforms as the first line of defense offers advantages that compensate for the security shortcomings and limitations of the massive use of VPN links for remote work.
It is clear today that for a large number of employees, telework is no longer a temporary situation lasting a few days and is becoming a reality which will accompany them at least in the medium term. Faced with this new situation, IT managers are beginning to worry about the challenge of guaranteeing secure remote employee access to the corporate network and beyond, of the risks that this represents for the continuity of their business activities. organization.
One of the most common solutions used by businesses for remote access is the virtual private network (VPN). VPN links encrypt a user’s web traffic and transfer it over a private connection to the corporate network, allowing employees to access corporate data and applications with guaranteed security and privacy .
Today, however, due to the proliferation of cloud-based applications such as Office 365, Google Drive, and others, it is rare for organizations to rely solely on VPN links for remote access to resources. of the company. In reality, VPN connections are typically used to access certain corporate servers internally, leaving remote users unprotected and always exposed to threats over the Internet when accessing these cloud-based applications.
In addition, VPN links may not provide the level of security necessary in the current threat environment. According to a recent alert from the United States Agency for Infrastructure and Cybersecurity (CISA), cybercriminals are increasingly interested in and exploiting vulnerabilities in VPNs, taking advantage of their massive use for telework in the midst of a pandemic. In addition, since VPN software is operational 24 hours a day, 7 days a week, it is often not regularly updated by users with the latest security patches.
Finally, many organizations have not anticipated the massive use of telework and their firewalls can only support a limited number of simultaneous VPN connections, which results in some employees simply being unable to connect to the network at certain times.
In this context, one of the most effective and cost-effective means of ensuring the secure connection of employees in telework is to use a secure DNS platform as the first line of defense. Any connection to the internet is in fact via a DNS server: employees working from home often use the public DNS server or the one provided by their internet service provider, which one and the other are often very insecure.