Systems and methods for reporting compromised card accounts

A machine-implemented method comprising:

• receiving, by one or more hardware processors of a first server machine of a first party responsible for a user account, a first security message from a second server machine of a second party, wherein the first security message is in an ISO 8583 format and comprising one or more first data elements comprising data reporting the user account as being compromised;
• analyzing, by one or more of the hardware processors, the first data elements of the security message;
• identifying, by one or more of the hardware processors, the user account as being compromised based on the analyzing of the one or more first data elements;
• generating, by one or more of the hardware processors after the identifying the user account as being compromised, a second security message in an ISO 8583 format, the second security message comprising one or more second data elements indicating that the first party received the data reporting the user account as being compromised;
• and
• sending, by one or more of the hardware processors, the second security message to the second server machine.

A non-transitory machine-readable medium having stored thereon machine-readable instructions executable to cause a machine to perform operations comprising:

• analyzing information collected from one or more online resources;
• detecting, based on the analyzing, a compromised user account maintained by another party;
• automatically placing an account restriction on the compromised user account;
• automatically generating and sending, to a server machine of the another party responsible for the compromised user account, a first ISO 8583 security message comprising one or more first data elements comprising a report identifying the compromised user account;
• receiving, after the sending the first ISO 8583 security message, a second ISO 8583 security message from the another party;
• analyzing the second ISO 8583 security message to determine that the second ISO 8583 comprises data indicating that the another party has confirmed receipt of the report identifying the compromised user account;
• and
• in response to the analyzing the second ISO 8583 security message confirming receipt of the report by the another party, automatically removing the account restriction.