Twitter is apologizing to business users for a data breach while announcing that their personally identifiable information might have been compromised.
It turns out that details such as email addresses, telephone numbers, and the last four digits of credit card numbers were stored in those users' browser caches. As a result, other individuals using the same computer could have looked at the information with no additional authorization or authentication.
Twitter says it became aware of the issue on May 20 and quickly repaired the vulnerability but felt it necessary to alert and apologize to business users. It has not disclosed how many customers might have been affected by the vulnerability.
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