Don’t Take the Bait, Step 5: Prevent Remote Access Takeover Attacks

IR-2017-127, August 8, 2017

WASHINGTON — The Internal Revenue Service, state tax agencies and the tax industry today reminded tax professionals that their entire digital network could be at risk for remote takeover by cybercriminals. Such a takeover could lead to fraudulent tax filings and damage to their clients.

Multiple incidents have been reported to the IRS in the past year as tax professionals’ systems have been secretly infiltrated. The criminals accessed client tax returns, completed those returns, e-filed them and secretly directed refunds to their own accounts.

Increasing awareness about remote takeovers is part of the “Don’t Take the Bait” campaign, a 10-part series aimed at tax professionals. The IRS, state tax agencies and the tax industry, working together as the Security Summit, urge practitioners to learn to protect themselves from remote takeovers. This is part of the ongoing Protect Your Clients; Protect Yourself effort.

“This is another emerging threat to tax professionals that the IRS has seen on the rise,” IRS Commissioner John Koskinen said. “A remote takeover can be devastating to practitioners’ business as well as to the taxpayers they serve. It’s critical for people to take steps to understand and prevent these security threats before it’s too late.”

A remote attack targets an individual computer or network as the cybercriminal exploits weaknesses in security settings to access the devices. Another line of attack uses malware to download malicious code that gives the criminals access to the network. Especially vulnerable are wireless networks, including mobile phones, modems and router devices, printers, fax machines and televisions that retain their factory-issued password settings. Sometimes, these devices have no protection at all.

There are multiple ways that cybercriminals can gain control of computers and other devices. Phishing emails with attachments can easily download malware that, when opened, give the criminal remote control of a computer.

Cybercriminals also can deploy certain tools that allow them to identify the location of and get access to unprotected wireless devices. For example, a printer with a factory-issued password can easily be accessed, and the criminals can see tax return information stored in its memory.

The IRS urges tax professionals to take the following steps to help protect themselves from remote takeovers:

Educate staff members about the dangers of phishing scams, which can be in the form of emails, texts and calls, as well as the threat posed by remote access attacks;
Use strong security software, set it to update automatically and run a periodic security “deep scan” to search for viruses and malware;
Identify and assess wireless devices connected to the network, including mobile phones, computers, printers, fax machines, routers, modems and televisions. Replace factory password settings with strong passwords.
Strengthen passwords for devices and for software access. Make sure passwords are a minimum of eight digits (more is better) with a mix of numbers, letters and special characters;
Be alert for phishing scams: do not click on links or open attachments from unknown, unsolicited or suspicious senders;
Review any software that employees use to remotely access the network as well as those used by IT support vendors to remotely troubleshoot technical problems. Remote access software is a potential target for bad actors to gain entry and take control of a machine. Disable remote access software until it is needed.