The name was Thomas Welch.
Forty-four years old, Chicago-born, MBA from Wharton, twelve years in financial services followed by five years as a principal at a boutique strategic advisory firm called Eastbridge Partners. Eastbridge's client list was not public, but its conference appearances and published thought-leadership pieces painted a picture: geopolitical risk, emerging market capital flows, alternative investment strategy. The kind of firm that sat at the intersection of finance and influence.
Yuki found three overlaps between Welch's professional history and Sorokin's.
The first: both had appeared as panelists at a Zurich-based financial intelligence conference in 2021 — different panels, but the conference roster put them in the same building on the same day.
The second: Eastbridge Partners had cited Vektor Systems' methodology in a 2022 white paper as an example of best-in-class alternative data practice. The citation was flattering and specific in a way that suggested familiarity rather than research.
The third: Welch had incorporated two previous entities using the same Delaware registered agent that had filed Arcline. One of those entities had dissolved after eighteen months with no public activity. The other had been acquired by a European holding company in 2023.
"Welch is a professional front," Yuki said. "Not a knowing participant in whatever Sorokin is building, necessarily. Could be a hired legal face with plausible deniability about the ultimate beneficial owner."
"Or he could be fully read in," Marcus said.
"Also possible. He's smart enough. The Wharton background, the Eastbridge work — this is not a naive actor."
Marcus thought about the picture. Sorokin building a domestic vehicle, using an American face, through a corporate registration chain that required specific knowledge to trace. The sophistication was appropriate to what Warren's file described — a network that had been operating for fourteen years without generating a prosecution.
He sent the name to Elaine.
She called two hours later. Her voice had a quality it had not had in their previous calls — not urgency exactly, but heightened focus.
"Welch is known to us," she said. "Eastbridge Partners has been on a monitoring list for two years in connection with a separate thread. The connection to Sorokin — through Arcline — is new information."
"Does it change the threat assessment?"
"It clarifies it. Welch's involvement suggests they're planning a business approach rather than a purely technical one. He's the kind of person you put in front of a startup founder when you want the first contact to look legitimate and domestic." A pause. "The approach will come through him."
"When?"
"Based on the Arcline incorporation date and Welch's typical operational tempo — two weeks, possibly less."
Two weeks. Marcus thought about the San Francisco conference, the Series B conversations, the Reiss term sheet that Marsh had finished reviewing and approved the previous week. His professional calendar was full, visible, and predictable.
"I want to be ready," he said.
"You will be," Elaine said. "When Welch makes contact, accept the meeting. I'll brief you beforehand on what we want to learn from the interaction."
"What do you want to learn?"
"What they think they're offering. And what they think you need." She paused. "People reveal their model of you in the terms they propose. If we can see their model, we can see their intelligence picture — what they know, what they've inferred, what they got wrong."
Marcus thought about this. It was a sound analytical approach. It was also, he recognized, a form of using him — letting Welch's approach generate intelligence for Elaine's operation. He had agreed to be the environment. He was going to be the environment.
But he was going to be a very attentive environment.
"One condition," he said.
"Go ahead."
"Whatever I learn from the meeting — I get to act on it too. Not just hand it to you and step back."
A silence. "Define act on it."
"Build a counter. If they're mapping me, I map them back. I use what I learn from Welch to understand the principal network better than your current file allows."
"That's not—"
"I'm not asking for operational authority," Marcus said. "I'm asking for the right to use my own capabilities in response to a threat to my company and my people. The same right any business owner would have."
A longer silence.
"Within limits I define," Elaine said.
"Within limits we negotiate," Marcus said.
Another pause. Then something in her voice that was almost, but not quite, a concession: "We'll talk before the meeting."