1/ 10

Lee Elbaz

Former CEO of Yukom Communications (BinaryBook / BigOption)

Avoid — Serious red flags
Reviewed July 1, 2026Also known as: Yukom Communications, BinaryBook, BigOption
Public record: Criminal conviction on record

What the public record shows

Lee Elbaz was CEO of Yukom Communications, an Israel-based company that ran the binary- options websites BinaryBook and BigOption. She was convicted by a jury in August 2019 of conspiracy to commit wire fraud and three counts of wire fraud, and sentenced to 22 years in prison with $28 million in restitution. The scheme cost investors more than $145 million worldwide. This is a criminal conviction — not an allegation.

The scheme — how binary-options fraud works

According to the Department of Justice, Elbaz — who called herself a “money-making machine” — trained employees to lie to investors and rig the odds against them:

  • “Binary options” were pitched as simple bets on whether an asset would rise or fall by a deadline — but the platform was designed so customers lost.
  • Salespeople used fake names, fake qualifications, and claimed to be in London while operating elsewhere.
  • They falsely “guaranteed” returns up to 40% and used terms like “bonuses,” “risk- free trades,” and “insured trades” to make losses feel impossible.
  • When customers tried to withdraw, the money was gone.

Why we rate this 1 / 10 — Avoid

A jury conviction and a 22-year sentence for one of the largest binary-options frauds ever prosecuted. Binary options marketed by unregistered offshore “brokers” are, as a category, overwhelmingly fraudulent — regulators worldwide have banned or restricted them for retail investors.

Red flags this case teaches

  • Unregistered offshore “brokers” cold-contacting you about a fast, simple trade.
  • “Risk-free,” “insured,” “guaranteed” returns — none of which exist in real trading.
  • Withdrawal problems — the universal end stage of these scams.

Bottom line

Convicted and serving 22 years. If an offshore platform offers guaranteed, “risk-free” binary-options or FX returns and makes withdrawals difficult, it’s not a broker — it’s a trap.

Sources

Editorial opinion — verify before you act.This review is independent editorial opinion based on public information and is not financial or legal advice. Ratings can change as new facts emerge. If you are the subject of this review and believe something is inaccurate, see ourcorrections & removals policy.

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