Despite the vulnerabilities of firewalls, they can be optimized and complemented with the use of hardware-based data diodes for improved network security. In an ideal security environment, the collective use of data diodes and firewalls can improve the overall security posture.
| Firewalls | Data Diode |
|---|---|
| Software technology- It is impossible to eliminate bugs, logic issues, and vulnerability to intrusions. | Hardware technology- All software vulnerabilities to intrusion are eliminated. |
| Firewalls fail to protect against severe DoS and other bogus attacks targeted directly on the servers. | Physical path separation of data diodes makes online attacks and security threats impossible. |
| Firewalls often require opening of ports to allow new pieces of protocol to communicate data. This poses a risk of wrong ports being opened. | Easy support protocols and proxy servers for transferring data can resolve the issue of wrong ports. |
| Complexities in configuration and maintenance. | Simple to implement, maintain, and configure. |
| Hackers can completely bypass the security protocol of an organization and get behind its firewall. | Hardware-based security protocols cannot be penetrated, simply because a virtual threat cannot bypass a physical barrier. |
| Failed firewall response could result in compromise of master user access information. | Data diodes are scaled to protect all forms of intrusions that can affect the integrity of critical data or information. |
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