SEAL-D Rooms
The SEAL-D (Security Enhanced, AINN Link Detatched) Rooms are used for sensitive negotiations you don't want others to spy on. Or you don't want the participants to take too solid information out about.
There are a number of SEAL-D rooms in various parts of the tower, administered by various rings. Often the secrecy is one-sided with one party visiting the other's room. In addition, Da Vinci Collaboration provides neutral rooms for others as part of their mission of facilitating communication.
SEAL-D Protection Levels
There are several settings you can use in a SEAL-D Room, offering various levels of protection. The administrator of the room decides the setting but it's relatively easy to verify by others.
Disabled: The SEAL-D Room is disabled, so no additional protection is gained.
Improved intrusion protection: The room provides improved protection against intrusions from outside, such as hackers trying to find out what's going on inside. Transmissions authorized by people inside the room aren't limited in any way, including recordings. By default, privacy is provided for all transmissions. This setting is the most useful when you trust those you're dealing with, or aren't speaking of anything particularly volatile.
Transmission scrambling: The purpose of this mode is to make sure none of the participants can provide outsiders with proof of the discussions taking place inside. Hence, random variation is inserted into all transmissions out of the room. This variation makes any video or audio recordings from within the room indistinguishable from forged data. The algorithm is advanced enough to prevent fixing the data by most means of data-correction. Dispite this, the data passes through in good enough shape to be comprehensible, so necklink conversations, for example, can be held with the people inside. After meetings in this mode it's usual practice to erase any electronic memory devices within the room with a controlled EM burst before lifting the scrambling (some rooms take backups of the users' necklink caches at entrance). This mode is most useful for meetings between ringleaders who don't want to be disconnected from ring affairs for extended periods of time.
Full seal: Plain and simple: no traffic in or out of the room is allowed. No amount of hacking can bypass the simple lack of electromagnetic connection between the room and the outside world. As with transmission scrambling, all data storage is erased before lifting the seal.