3DS browser flows can reveal card state before authorization
In six of seven ACS cohorts, a Braintree/Cardinal browser path separated researcher cards from nearby same-range PANs.
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In six of seven ACS cohorts, a Braintree/Cardinal browser path separated researcher cards from nearby same-range PANs.

Group-IB details the Milk Dragon phishing kit using fake social-media discounts to steal payment cards and 3DS one-time passwords across 66 countries.
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