Turn on Multi-Factor Authentication (SMS, App, or Security Key) on all supported platforms. This is the most effective defense against combolist attacks.
Critical. If your credentials are in this list, any account sharing that password is at immediate risk of takeover. Immediate Recommendations 1.2M Shopping Combolist [ HQ ].txt
If you believe your information may be included in such a leak: Turn on Multi-Factor Authentication (SMS, App, or Security