This information comes only from the single source of the official ChatGPT X account, with no other independent sources corroborating it. This means that even though the publisher is official, what we can confirm is only that "the official announced this," not that "the feature is fully available."
The source did not provide a feature launch timeline, nor did it explain the full availability scope. Whether the feature is fully launched or being rolled out in stages, whether paid tiers other than Free and Go also include the feature, what roles Plaid and Experian each play in the connection process, and what the specific privacy and data security mechanisms are, the source did not explain. The official account merely glossed over it with "secure connection."
There is also a key uncertainty: whether the feature was actually available at the time of publication, or was only at the announcement stage, the source did not make clear. For readers, this means what can be confirmed now is the announcement action itself, not the user experience.