Most Expensive ICO Failures: How These Crypto Scams Lost Investors Millions

The ICO boom of 2017–2018 was a digital gold rush. Promises of decentralized revolutions drew in billions from eager investors, yet many dreams ended in disaster. Some of the most well-funded projects failed spectacularly, due to scams, legal issues, or poor execution. These weren’t just minor missteps; they burned through hundreds of millions of dollars and shattered investor trust across the crypto world.

Key Takeaways

• Billions lost: Some ICOs raised $100M+ before collapsing entirely.
• Scams, lawsuits, and poor planning were major reasons behind ICO failures.
• Telegram and Tezos are among the most controversial examples.
• Many investors never recovered their money, as token values dropped to near zero.
• These failures reshaped the regulatory landscape, leading to SEC crackdowns and a pivot toward more secure models like STOs and IDOs.

The Rise and Fall of the ICO Era

In 2017 and 2018, launching an ICO (Initial Coin Offering) was as trendy as launching a startup in Silicon Valley. Using Ethereum’s ERC-20 standard, projects could easily mint tokens, slap on a whitepaper, and raise millions, sometimes in minutes. Investors, driven by hype and the fear of missing out, poured over $20 billion into ICOs during this period.

But behind the buzz were serious structural flaws:

• Lack of regulation meant anyone could launch a token, regardless of credibility.
• Projects often had no working product, just lofty promises.
• Funds were misused or outright stolen in exit scams and rug pulls.

Top 10 Most Expensive ICO Failures (Ranked by Funds Raised)

The ICO era saw billions raised on bold promises, many of which collapsed spectacularly. This ranked list spotlights the 10 most expensive ICO failures based on how much they raised before falling apart due to scams, legal issues, or mismanagement.

1. AriseBank – $4.2 Million Raised

AriseBank claimed to be the world’s first decentralized bank but operated without regulatory approval. The SEC froze its assets, and the project was shut down shortly after launch.

• Disaster Type: Regulatory fraud
• What happened: Claimed to be the world’s first decentralized bank. SEC halted operations, citing unregistered securities and fake endorsements.
• Aftermath: Assets frozen, executives charged.

2. LoopX – $4.5 Million Raised

LoopX promised automated crypto trading powered by AI but disappeared overnight after collecting millions. It became one of the most blatant and fastest exit scams of the ICO era.

• Disaster Type: Exit scam
• What happened: The team vanished overnight after collecting funds, wiping all online presence.
• Aftermath: Zero recovery. One of the fastest and most blatant exit scams.

3. Plexcoin – $15 Million Raised

Plexcoin lured investors with promises of 1,354% returns in under a month—an obvious red flag. The SEC quickly halted operations and charged the founder with fraud.

• Disaster Type: Fraud
• What happened: Promised insane returns (over 1300%). SEC called it a scam and froze assets.
• Aftermath: Founder fined, banned. Investors lost most funds.

4. Centra Tech – $25 Million Raised

Backed by celebrities like Floyd Mayweather and DJ Khaled, Centra Tech promised a crypto debit card backed by Visa. The founders were arrested, and the token collapsed to zero.

• Disaster Type: Celebrity-backed fraud
• What happened: Promoted by Floyd Mayweather and DJ Khaled. Faked Visa partnerships and sold a dream crypto debit card.
• Aftermath: Founders arrested. SEC charged celebrities with illegal promotion.

5. COMSA (Tech Bureau) – $95 Million Raised

COMSA, launched by Tech Bureau, aimed to streamline blockchain adoption in Japan. But after its parent exchange, Zaif was hacked, trust evaporated, and the project lost momentum.

• Disaster Type: Exchange hack fallout
• What happened: After the parent company’s exchange, Zaif, was hacked, confidence in COMSA plummeted.
• Aftermath: Project effectively abandoned. Token lost most of its value.

6. Envion – $100 Million Raised

Envion promoted mobile crypto mining units and raised big, but quickly fell into legal disputes between the founders and investors. Swiss regulators eventually ordered the company’s liquidation.

• Disaster Type: Internal conflict & regulatory failure
• What happened: Promised mobile crypto mining units. Legal battles between founders and investors collapsed the project.
• Aftermath: Swiss regulators forced liquidation.

7. The DAO – $150 Million Raised

The DAO was one of Ethereum’s first major projects, but a critical code flaw led to a $60 million hack. It resulted in a controversial Ethereum hard fork and permanently ended the project.

• Disaster Type: Smart contract exploit
• What happened: Hacker exploited a flaw and siphoned off $60M.
• Aftermath: Ethereum hard-forked to reverse damage. DAO was shut down.

8. Tezos – $232 Million Raised

Tezos raised massive funds but was paralyzed by internal legal conflicts between its founders and the foundation. Although it eventually launched, the delays and lawsuits damaged its reputation.

• Disaster Type: Internal legal conflict
• What happened: Disputes between founders and the Tezos Foundation delayed token issuance.
• Aftermath: Project survived, but was heavily damaged by lawsuits and bad press.

9. Dragon Coin – $320 Million Raised

Dragon Coin targeted the Asian gambling market and was allegedly linked to criminal syndicates. Despite its huge rise, it failed to deliver and left investors with near-worthless tokens.

• Disaster Type: Regulatory gray zone & criminal links
• What happened: Allegedly tied to Asian crime syndicates. The use case in the gambling industry fell apart.
• Aftermath: Project stalled. Token value collapsed.

10. Telegram Open Network (TON) – $1.7 Billion Raised

TON was one of the most ambitious ICOs ever, launched by Telegram to create a decentralized internet. The SEC blocked its release, citing unregistered securities, and Telegram refunded what it could before canceling the project.

• Disaster Type: SEC intervention
• What happened: The SEC sued Telegram, calling its token sale an unregistered securities offering.
• Aftermath: Telegram refunded unspent funds. TON was canceled.

These cases add more weight to the total multi-billion-dollar loss from the ICO era. Each one highlights different failure points, from outright fraud to mismanagement and security flaws.

Spotting the Red Flags: Why These ICOs Failed

While each failure had its own story, many shared common red flags, like unrealistic promises, lack of a working product, and regulatory blind spots. Understanding these warning signs can help investors avoid repeating the costly mistakes of the past.

• 🚩 Unrealistic Promises: Guaranteed high returns (e.g., Plexcoin) with no backing.
• 🚩 No Working Product: Many raised millions with nothing more than a whitepaper.
• 🚩 Poor Governance: Internal disputes (e.g., Tezos, Envion) derailed progress.
• 🚩 Lack of Legal Clarity: Regulatory ambiguity and securities violations (TON, AriseBank).
• 🚩 Celebrity Hype: Projects leaned heavily on influencer marketing instead of real substance.

These patterns taught the crypto community a hard lesson: if it sounds too good to be true, it usually is.

Life After Collapse and the Future of Web3 Fundraising (Where Are They Now?)

Some failed ICOs disappeared without a trace, while others morphed into functioning, though diminished, projects. This section explores how the landscape evolved post-crisis, with new funding models and lessons that shaped the Web3 space.

• Tezos: After years of legal battles and internal strife, the project eventually launched and maintains a live blockchain. Despite this, its credibility suffered long-term damage.
• The DAO: Never recovered. The infamous hack led to Ethereum’s controversial hard fork, giving birth to Ethereum Classic. It also sparked deep conversations about smart contract risks.
• Telegram’s TON: The original TON was scrapped, but the open-source community revived it as The Open Network (ton.org), now independent of Telegram.
• Centra Tech, Plexcoin, AriseBank, LoopX: These remain dead projects, often used as case studies for fraudulent behavior and regulatory overreach.

Most others, like Dragon Coin, Envion, and COMSA, saw their tokens delisted and their communities dissolved.

Can the Industry Truly Learn?

The ICO bust forced the crypto industry to mature, driving better practices, smarter investors, and tougher regulations. But with new trends constantly emerging, the question remains: Has the space truly learned, or is history set to repeat itself?

• Investors became smarter, demanding audits, proof-of-work, and legal compliance.
• Builders became more cautious, understanding that hype alone won’t sustain a product.
• Regulators caught up, drafting smarter rules to prevent the next Plexcoin-style fiasco.

But new fundraising formats like memecoin pre-sales, NFT-based raises, and DAO treasuries suggest that risk still lives on. The line between innovation and exploitation remains thin.

Conclusion: The Legacy of ICO Failures

The most expensive ICO failures serve as a hard-earned education for the crypto space. They revealed what happens when greed outpaces governance, and how quickly billions can evaporate in the absence of structure. These stories are more than historic footnotes, they’re reminders that in the Web3 world, transparency, trust, and accountability are the only true currencies of lasting value.