A U.S. Customs and Border Protection supervisor in Maine has been arrested and charged with stealing computer hardware worth over $105,000 from Department of Homeland Security facilities, replacing high-performance Intel processors with cheaper, older chips and funneling the stolen components through Newegg's trade-in program. The case highlights a surprisingly low-tech vulnerability in government IT security: an insider with physical access to computers and the willingness to exploit it.

What Exactly Did the Supervisor Steal?

Terry "Jiajia" Liu, a Customs and Border Protection supervisor based in Calais, Maine, allegedly stole computer hardware from at least 46 Department of Homeland Security computers across three Maine border facilities over a 14-month period from May 2025 to July 2026. The stolen components included Intel 14th Generation Raptor Lake Refresh processors, memory modules, and hard drives. Liu then replaced the original parts with inferior hardware purchased from Amazon and Newegg, effectively downgrading the government computers' performance without authorization.

According to investigators, the scope of the theft was systematic. Thirty-nine computers had their processors replaced, six machines had memory modules swapped, and eight had hard drive changes. In some cases, Liu downgraded systems from modern Raptor Lake Refresh chips to much older Pentium processors, a dramatic performance reduction that would have been immediately noticeable to users.

How Did the Supervisor Get Away With It Initially?

Liu's official responsibilities were limited to information technology support, and they did not have authorization to modify government computers. Port Director Theodore Cummings had even issued a written order explicitly stating, "Please do not move any computers or computer parts". However, Liu proceeded anyway, using the midnight shift to commit the thefts in a training room away from regular oversight.

Hidden surveillance cameras captured the crimes in action. One recording showed Liu using a screwdriver to scrape thermal paste off a processor before installing a replacement chip in a government system. Another camera caught Liu removing a memory module from a computer and storing it in their desk drawer. The thief's strategy relied on the assumption that no one would closely inspect the downgraded hardware or connect the missing components to their actions.

How Did Investigators Trace the Stolen Hardware?

Instead of selling the stolen components on the open second-hand market, Liu chose a more discreet approach: Newegg's Trade-In program. This decision ultimately became the key to the investigation. According to the affidavit, Liu sent 13 emails between a personal account and an official CBP email address containing shipping labels and trade-in receipts for processor models that matched the missing components from the government computers.

The trade-in offers were modest, ranging between $200 and $210 per processor. Over the 14-month period, Liu traded in Intel Core i7 Raptor Lake Refresh chips 16 times through Newegg's program, generating approximately $3,200 to $3,360 in store credit. Investigators also discovered three $200 credits from Newegg in Liu's American Express records, providing a direct financial link between the stolen hardware and the suspect's personal accounts.

Steps to Understand How Government IT Security Vulnerabilities Occur

• Physical Access Risk: Employees with legitimate IT support roles have unsupervised access to government computers, creating opportunities for internal theft that external cybersecurity measures cannot prevent.
• Inadequate Hardware Tracking: Government agencies may not conduct regular audits of computer components to verify that original hardware remains installed, allowing downgrades to go undetected for months.
• Third-Party Trade-In Programs: Legitimate resale channels like Newegg's Trade-In program can inadvertently facilitate the laundering of stolen government property if proper verification procedures are not in place.
• Insider Motivation Complexity: Liu initially claimed the hardware swaps were intended to improve computer performance and reduce repair times, but later admitted the changes actually degraded system performance, suggesting financial motivation was the primary driver.

During an interview with investigators, Liu confessed to replacing hardware in the government computers with lower-performing parts and acknowledged submitting the government-owned components to Newegg's Trade-In program. At first, Liu claimed the actions were motivated by a desire to improve the computers' performance and reduce how long repairs took. However, Liu later admitted that the changes resulted in degraded performance, undermining the initial explanation.

What Is the Financial Cost of the Theft?

The financial impact of Liu's actions is substantial. Restoring the stolen hardware to the government computers could cost approximately $20,460, while fully replacing all 46 compromised computers with equivalent hardware would cost an estimated $105,800. However, investigators noted that additional labor to configure each system for government use would drive the total bill even higher, potentially exceeding $120,000 when all costs are factored in.

The case underscores a critical gap in government IT security: while agencies invest heavily in cybersecurity defenses against external threats, insider threats involving physical access to hardware remain difficult to prevent and detect. Liu's arrest demonstrates that even a modest financial incentive, combined with physical access and minimal oversight, can result in significant losses to taxpayers.