المدربAn information barrier is the set of organisational, physical and electronic controls that keep inside information held in one part of a firm from people in another who trade or advise on the instruments concerned. A wall-crossing is the controlled passing of inside information to a person on the other side of a barrier, or to an outside investor sounded about a transaction, with their prior consent, recorded, and binding them not to trade until the information is public or no longer inside. An insider list records every person with access to inside information about an issuer, when they obtained it, and why.
