Ellie Mae (ELLI), a leading provider of on-demand automated solutions for the residential mortgage industry, said service outage today is "consistent with an external malicious attack characteristic of a distributed denial of service," the company said in a statement.
The company's software could not close mortgages during the outage.
Ellie Mae said it took actions to isolate the suspicious activity and prevent future unwarranted access.
There is no evidence of any data breach and the company confirmed that client data and personal borrower data remain secure, the company said.
“We recognize the critical role our services play in enabling our clients to serve their customers and deeply regret the inconvenience and delays they are experiencing," said Sig Anderman, founder and chief executive officer of Ellie Mae.
"The performance and security of our platform is our number one priority," he added. "We are doing everything within our power to restore full operations as soon as possible."
Ellie Mae has also engaged with third party security forensic specialists to collect evidence to determine appropriate steps with authorities.