Is your VPN really up to the task?
You have a VPN for your business and you feel protected. But are you sure the solution is still current and not just an illusion of security?
by Mihail Tornea
In the digital age, technologies evolve quickly, and the methods of cyberattack grow more sophisticated. Extended networks, the massive use of cloud services, and the rising number of connected devices have led to an impressive volume of data transmitted every day.
In this context, protecting information is no longer just an option but an absolute necessity, given that cyberattacks generate huge financial and reputational losses. Estimates show that the global cost of cybercrime is approaching 10.5 trillion USD per year, exceeding the damage caused by many natural disasters.
Faced with this reality, virtual private networks (VPN) and advanced security protocols such as IPSec remain essential solutions for protecting the confidentiality and integrity of data transmitted between different locations.
The impact of supercomputers on VPN security
Advances in the field of supercomputers call for advanced security measures for VPN networks. Without adequate protection, companies' internal networks become vulnerable to sophisticated attacks. Many devices, including network printers, video monitoring systems, and workstations, are not designed to withstand an attack carried out with the help of a supercomputer.
A system as powerful as the NVIDIA GB200 NVL72, or one that is even more capable, can become a major cyber threat if it falls into the hands of a criminal group or a hostile state. State-sponsored attacks have grown significantly in recent years, targeting critical infrastructure, including in Romania and the Republic of Moldova.
One of the biggest risks is the ability of these systems to carry out ultra-fast brute-force attacks capable of cracking cryptographic keys. Even though longer keys (16 characters or more) offer a high level of protection, a supercomputer can compromise shorter keys in just a few seconds. This opens the door to unauthorized access to private networks, interception of communications, and data exfiltration.
The vulnerabilities of older VPN protocols
Older protocols such as PPTP or L2TP do not provide an adequate level of security against modern threats. PPTP uses outdated authentication mechanisms, and L2TP, without additional encryption, exposes traffic to interception.
Even advanced protocols such as IPSec/IKEv2 can become vulnerable in the case of incorrect configuration. A key of only 8 characters can be cracked quickly. Security becomes effective only when keys have a length of at least 16 characters.
The consequences of using insecure protocols
Breaches can lead to:
- unauthorized access to internal networks;
- exfiltration of sensitive information and compromise of critical infrastructure;
- the launch of follow-on attacks, such as ransomware or cyber espionage;
- financial losses and reputational damage.
Essential measures for strengthening network security
- adopting only modern protocols, such as IPSec/IKEv2;
- using cryptographic keys of at least 16 characters;
- enabling the Perfect Forward Secrecy (PFS) mechanism;
- rotating cryptographic keys periodically;
- continuously monitoring configurations and implementing intrusion detection mechanisms.
Do you need cybersecurity consulting?
Data security is not a luxury but a necessity. Do not leave your IT infrastructure exposed to ever more advanced threats.
Contact us for a personalized assessment and find out how we can protect your business against cyberattacks. Stay one step ahead of attackers, secure your network now.
