The recent hack on Twitter which affected 250,000 users will have left subscribers uneasy over linking their microblogging accounts to their American Express credit card accounts to conduct e-commerce activities.

The saving grace would be American Express’ efforts in beefing up its online transaction security these past years, which should convince some users that the e-commerce tie-up between the two companies remains a viable service.Users who are interested in promotion products can send out a tweet with a specific hashtag. American Express will send an @-reply for confirmation, and buyers have 15 minutes to ratify the purchase. (Source: YouTube)

Last Monday, Twitter announced its e-commerce partnership with American Express. Credit card holders who link their bank accounts with their Twitter handles will be able to trigger a purchase of products such as jewelry or gift cards by posting a tweet.

Twitter was the victim of a successful breach on its systemsearlier this month, however. It said: “[Our] investigation has thus far indicated that the attackers may have had access to limited user information–user names, e-mail addresses, session tokens and encrypted/salted versions of passwords–for approximately 250,000 users.”

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