Firewall Security

Standard=
 * -|Brawler=
 * -|Byte=
 * -|Nybble=
 * -|Sentry=
 * -|Surveyor=
 * -|Scourger=
 * -|Titan=

Miscellaneous Variants
There are Firewall variants that aren't ranks nor classes, but rather "roles" which could be applied to any of the aforementioned variants, and variants that aren't roles but aren't ranks/classes either.
 * Firewoof Shepherd
 * Mediwall
 * Puppet

Alternate Types
There are alternate types of Firewalls besides the default red variant who is the mascot for the team in Databrawl's Battle Zone, such as the aforementioned Passionwall, and six others. While the default Firewalls and Passionwalls were both made by the company Inception Antivirus, other Firewall types were made by different companies:
 * Adorawall (Pretty)
 * Reclusawall (Shy)
 * Default
 * Passionwall (Love)
 * Brawnwall (Muscle)
 * Swinewall (Utopia)
 * Fructowall (Hollow)
 * Fighterwall (War)
 * Torturewall (Pain)
 * Intellectuwall (Smart)
 * Brickwall (Classic)
 * Federwall (Government)
 * Firecracker (Holly)
 * Aureate Firewall Drone (NON-CANON)

Notable Firewalls

 * Sudonix
 * Firewall Guardian

Lore

 * Firewalls are made of metal. Due to this, if they get damaged, they will get damage associated with metal like warping and scrapes.

Trivia

 * Firewall Security units were one of the first, base four characters to be added to Databrawl (with the other three being Viruses, Malware, and Programs). They have been in the game since the game's beginning.
 * The base of Firewalls is known as Inception Antivirus, which is also the name of the company that created Firewalls. (in the game specifically)
 * In game, Firewalls act more like antiviruses more than Firewalls. Firewalls act as a measure to prevent malicious programs from entering the computer in real life, while Antiviruses actively try to destroy any malware or viruses in the computer.
 * All of the Firewall Security voice clips are edited Combine voice clips from Valve's Half-Life 2. Before this, Firewalls had voice clips that worked exactly the same as the other characters' voice clips whereas unedited voice clips were placed through Roblox's sound filters in order to give them a characteristic voice
 * Firewalls were once locked behind a gamepass. Few people were on the team in a regular server as a result of this. Firewalls were then made to be a free team and the gamepass required to be a firewall was recycled into the VIP gamepass.
 * Back when Firewalls were locked behind a gamepass, they had a 50% health boost, and damage boost.
 * Because of the addition of Program Gyggle on May 17th, 2020, it is now the only major team that does not have Nybbles ingame.
 * In Databrawl Battle, Firewall Scouts were removed on October 6th, 2018, and didn't make a return with all of the other Bytes (Program, Virus, Malware) when they were readded on May 17th, 2020. However, Scouts returned on August 9th, 2020 with Mediwalls being added to Battle Mode.
 * In the Databrawl Discord server, there is a bot titled "Inception Antivirus" (made by mustardfoot) which uses a Firewall Executor as its icon. The choice to theme the bot after Firewalls is most likely connected to the fact that Firewalls are AIs.