The HR software world isn’t usually known for high drama—but the latest lawsuit between Human Interest and Guideline reads like a Silicon Valley spy novel. Human Interest, a 401(k)-management startup valued at $1.4 billion, has sued its rival Guideline in federal court, alleging a coordinated scheme to steal company secrets. At the center of the complaint are three brothers: Brian and Brandon Sterri, who were junior sales employees at Human Interest, and their third brother, Eirik, who worked for Guideline. According to court filings, while still on Human Interest’s payroll, the brothers secretly funneled confidential data—including customer leads and internal strategy documents—to Guideline’s executives, calling their operation the “Sterri Takeover.”
The allegations are as bold as they are specific. The complaint cites text messages such as “We are going to tear apart HI. It’s going to be the easiest thing to do,” and details how one brother sought a “favor” from a co-worker—asking for screenshots of Human Interest’s total lead flow, described as the company’s “crown jewels.” When rebuffed, he allegedly offered a job at Guideline in exchange for the data. Human Interest claims the brothers used personal Gmail accounts and even family members to evade detection, downloading proprietary sales metrics and forwarding them to Guideline leadership. What elevates the case beyond typical corporate misconduct are allegations that Guideline’s CEO Kevin Busque and CFO Steven Wu personally received and encouraged the information transfers.
The fallout extends well beyond the Sterri brothers. Human Interest alleges that after it sent cease-and-desist letters, Guideline’s CFO conditioned a potential asset sale on dropping the lawsuit—an act the plaintiff characterizes as attempted extortion. The timing is especially precarious: Guideline is in the midst of a reported $600 million acquisition by payroll platform Gusto, which recently confirmed awareness of the litigation but denied involvement. Guideline, for its part, has publicly dismissed the claims as “false and without merit.” Still, with overlapping accusations of breach of contract, trade-secret theft, computer fraud, and even RICO violations, this case underscores how blurred the lines between competition and conspiracy can become in today’s data-driven industries.
In the broader startup landscape, Human Interest v. Guideline follows the ongoing feud between HR tech giants Deel and Rippling—another battle involving allegations of planted insiders and systemic data theft. As these cases unfold, they highlight the growing legal risks that accompany innovation, employee mobility, and M&A activity in the tech sector. For businesses large and small, the lesson is clear: corporate espionage isn’t limited to spy movies. To learn more, contact us at (704) 457-1010 or visit www.lordlindley.com to schedule a consultation and discuss your options.