A “distributed denial of service attack” bombarded realtor.com and other websites operated by Move Inc. with “massive amounts of traffic,” causing the extended outages experienced Wednesday, Move said in a statement.

Realtor.com, the official real estate search portal of the National Association of Realtors, and topproducer.com, the website of Move’s popular customer relationship management system for agents, were accessible at times this morning. But the realtor.com mobile app, and apartment and new-home search site move.com, wouldn’t load for Inman News.

Some Move-owned sites, including Doorsteps, FiveStreet and TigerLead, appear to be up and running.

Distributed denial of service attacks sent by people or botnets are a growing problem for online businesses, Move said. Botnets are a collection of programs communicating with other similar programs.

Forbes reports that distributed denial of service attacks rose sharply in 2013, and have continued to grow in recent months. Security experts say they are often a diversionary tactic employed by thieves seeking credit card numbers or other sensitive data.

Move said it had no evidence that the attack “includes or has resulted in any compromise of data or other content on its websites,” and that it’s “working closely with federal law enforcement to identify the persons responsible for the attack,” which it said began midday Tuesday. 

Wednesday’s outages made realtor.com, topproducer.com and move.com unusable for much of the day, frustrating agents. Some said the outages hindered their ability to communicate with clients and perform daily tasks.

Show Comments Hide Comments
Sign up for Inman’s Morning Headlines
What you need to know to start your day with all the latest industry developments
By submitting your email address, you agree to receive marketing emails from Inman.
Thank you for subscribing to Morning Headlines.
Back to top
Only 3 days left to register for Inman Connect Las Vegas before prices go up! Don't miss the premier event for real estate pros.Register Now ×
Limited Time Offer: Get 1 year of Inman Select for $199SUBSCRIBE×
Log in
If you created your account with Google or Facebook
Don't have an account?
Forgot your password?
No Problem

Simply enter the email address you used to create your account and click "Reset Password". You will receive additional instructions via email.

Forgot your username? If so please contact customer support at (510) 658-9252

Password Reset Confirmation

Password Reset Instructions have been sent to

Subscribe to The Weekender
Get the week's leading headlines delivered straight to your inbox.
Top headlines from around the real estate industry. Breaking news as it happens.
15 stories covering tech, special reports, video and opinion.
Unique features from hacker profiles to portal watch and video interviews.
Unique features from hacker profiles to portal watch and video interviews.
It looks like you’re already a Select Member!
To subscribe to exclusive newsletters, visit your email preferences in the account settings.
Up-to-the-minute news and interviews in your inbox, ticket discounts for Inman events and more
1-Step CheckoutPay with a credit card
By continuing, you agree to Inman’s Terms of Use and Privacy Policy.

You will be charged . Your subscription will automatically renew for on . For more details on our payment terms and how to cancel, click here.

Interested in a group subscription?
Finish setting up your subscription