Processing authentication requests to secured information systems using machine-learned user-account behavior profiles

A method, comprising:

• at a computing platform comprising at least one processor, a communication interface, and memory:
• receiving, by the at least one processor, via the communication interface, a first authentication request corresponding to a request for a first user of a first client computing device to access one or more secured information resources associated with a first user account;
• based on receiving the first authentication request, capturing, by the at least one processor, one or more behavioral parameters associated with the first client computing device;
• capturing, by the at least one processor, first activity data associated with one or more interactions by the first client computing device with one or more non-authenticated pages;
• evaluating, by the at least one processor, the one or more behavioral parameters associated with the first client computing device and the first activity data based on a first behavioral profile associated with the first user account;
• based on evaluating the one or more behavioral parameters associated with the first client computing device and the first activity data, identifying, by the at least one processor, the first authentication request as malicious;
• based on identifying the first authentication request as malicious, generating, by the at least one processor, one or more denial-of-access commands directing an account portal computing platform to prevent the first client computing device from accessing the one or more secured information resources associated with the first user account;
• and
• sending, by the at least one processor, via the communication interface, to the account portal computing platform, the one or more denial-of-access commands directing the account portal computing platform to prevent the first client computing device from accessing the one or more secured information resources associated with the first user account.

One or more non-transitory computer-readable media storing instructions that, when executed by a computing platform comprising at least one processor, a communication interface, and memory, cause the computing platform to:

• receive, via the communication interface, a first authentication request corresponding to a request for a first user of a first client computing device to access one or more secured information resources associated with a first user account;
• based on receiving the first authentication request, capture one or more behavioral parameters associated with the first client computing device;
• capture first activity data associated with one or more interactions by the first client computing device with one or more non-authenticated pages;
• evaluate the one or more behavioral parameters associated with the first client computing device and the first activity data based on a first behavioral profile associated with the first user account;
• based on evaluating the one or more behavioral parameters associated with the first client computing device and the first activity data, identify the first authentication request as malicious;
• based on identifying the first authentication request as malicious, generate one or more denial-of-access commands directing an account portal computing platform to prevent the first client computing device from accessing the one or more secured information resources associated with the first user account;
• and
• send, via the communication interface, to the account portal computing platform, the one or more denial-of-access commands directing the account portal computing platform to prevent the first client computing device from accessing the one or more secured information resources associated with the first user account.