Salesforce Restriction Rules Summer21 release (Beta)

 Resriction rules let you enhance your security by allowing certain users to access only specified records.

They prevent users from accessing records that can contain sensitive data or information that isn't essential to their work.

Restriction rules are avaialble for custom objects,contracts,tasks and events and can be configured through the Tooling or 

Metadata API.

ex :

<?xml version="1.0" encoding="UTF-8"?>

<RestrictionRule xmlns="http://soap.sforce.com/2006/04/metadata">

    <active>true</active>

    <description>Allows users with a specific profile to see only tasks that they own.</description>

    <enforcementType>Restrict</enforcementType>

    <masterLabel>Tasks You Own</masterLabel>

    <recordFilter>OwnerId = $User.Id</recordFilter>

    <targetEntity>Task</targetEntity>

    <userCriteria>$User.ProfileId = '005xxxxxxxxxxxx'</userCriteria>

    <version>1</version>

</RestrictionRule>

Restriction rules are applied to the following Salesforce features:

List Views

Lookups

Related Lists

Reports

Search

SOQL

SOSL