Aspects of the disclosure relate to account lineage tracking and automatically executing responsive actions upon detecting an account lineage. A computing platform may receive a first account-change message from a source-level interceptor. The first account-change message may include information identifying a source account associated with a first computing device and identifying a first target account. The first target account may be associated with a target application configured to access the target database. The computing platform may receive a second account-change message from a database-level interceptor. The second account-change message may include information identifying the first target account as a database-level source account and identifying a second target account associated with one or more target databases. After receiving the first and second account-change messages, the computing platform may generate a notification comprising information associated with an account lineage between the source account and the second target account.