TD Bank suffered an online attack that affected its website and mobile app on Thursday, the Huffington Post Canada has confirmed.

The problem is affecting online and mobile customers in both Canada and the U.S., where TD has been ramping up its presence and uses the tag line "America's most convenient bank."

Customers who are affected see a "this webpage is not available message" when they try to log in online.

Spokeswoman Barbara Timmins said the bank is in the process of trying to fix the issue.

"We're doing plenty, we're working diligently," she said, adding she could not go into detail.

No customer accounts or data were compromised by the attack, a TD spokesperson wrote in an e-mail.

The e-mail from TD:

It’s a DDOS [ed note: Distributed denial of service attack] disruption, affecting online/mobile banking services. Access may be intermittent and we’re working to restore full service as soon as possible.
Customers can also call EasyLine and WebBroker, visit branches or use ATMs.
This is a service disruption only, no customer data/accounts compromised.

A DDOS attack is when hackers use a group of computers, sometimes numbering in the thousands, to attack a target such as a server or a site to bring it down.

Have you been affected? Let us know in the comments section below.

U.S. and Canadian outlets reported the attack earlier on Thursday.

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  • CNBC

    TD Bank confirms cyber attack this morning; TD Bank's website, mobile app down for 1 hour during attack; ATMS, call centers uninterrupted

  • Francis D'Souza

    #BREAKING TD Bank confirms to @Citynews they were victim of cyber attack this am. Web/Net banking affected.

  • Julie Prasad

    : Cyber attack still affecting @TD_Canada services. But bank says customers can call EasyLine 1-866-222-3456 for assistance"

  • Marc

    TD Bank hacked accounts hacked to buy 100%spy puts.. Looked at my account and skipped hahahaha

  • Joseph LeBouthillier

    TD Bank was the target of a cyber attack this morning. Online banking affected. #CheckYourAccounts

  • Kaitlyn Zarkowsky

    How can td bank online banking be temporarily unavailable.. Like yeah I don't need access to my money or anything

  • Sam Taylor

    Why isn't my TD bank app working? I mean I know I'm broke but I need to know how broke..

  • eugene j.

    I have suspicious charges on my bank account and the TD Canada Trust site hasn't been working all morning.

  • Brad Morrison

    TD Bank and Waterhouse sites have been down all morning; good thing nothing's happening with my BB stock today.