June 18, 2018

Updated Security for Credit Card Payments on DMWW Website

As of June 1, 2018, industry online security standards have changed because previous versions have been shown to be vulnerable to attack.  Companies that accept payments by credit card, including Des Moines Water Works, are no longer supporting the security protocol known as TLS 1.0, and are instead supporting versions TLS 1.1 and TLS 1.2.  In order to initiate online transactions from older browsers, it may be necessary to update your PC to include the latest version of your browser.    The minimum accepted versions after June 1, 2018 are:

  • Internet Explorer: 11 (Current 11)
  • Google Chrome: 44 (Current 60)
  • Firefox: 38.1 (Current 55)
  • Edge: 12 (Current 15)
  • Opera: 30 (Current 47)
  • Safari: 9 (Current 11)
  • Safari Mobil: 8 (Current 11)
  • Android OS Browser 5.1 (Current 8)

We strongly recommend users upgrade their internet browser and anti-virus software to the latest version available to maintain the highest level of security.  Customers will be unable to initiate payments online at www.dmww.com until their browser has been updated to the minimum version listed above.

This change is mandated by the PCI (Payment Card Industry) Security Council and affects all merchants and service providers that transmit credit card data. Please update your operating system and browsers to ensure compliance with these new safety protocols.

Posted by: Laura Sarcone 2 Comments
Labels: , , Posted in Customer Service, Customers

2 Responses to “Updated Security for Credit Card Payments on DMWW Website”

  1. June 19, 2018 at 12:18 pm, Anne Downs said:

    I am running the most current version of Safari (11.1.1), and I could not make an online payment today. I called customer service to get help with this, but they would not address the problem. They were only willing to take my payment, even after I explained that I am running what should be an acceptable version of Safari, according to this article.


    • June 19, 2018 at 12:36 pm, Laura Sarcone said:

      We apologize for the inconvenience. We have discovered a separate issue affecting payments when users select “Schedule Online Payment” and use their existing saved payment info. Our IT department is working on a solution.

      In the interim, the following work around may help:
      After you log into your online account, select “Pay Today-One Time.”
      Click “Pay By E-Check or Pay By Credit Card” link.
      You should be able to enter your information and process the payment.

      Again, we apologize for this inconvenience and are working to resolve it.



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