Crypto Presale Scams: Red Flags to Check Before You Send Anything

In a presale, you send money to a project in exchange for tokens you will receive later, usually at launch. Some presales are run openly through established launch platforms with on-chain vesting. Many are not, and presales are one of the most common ways people lose money in crypto, because at that stage there is no market price, no trading history and often no token contract to inspect.

None of the points below proves a presale is fraudulent. Each is a way of losing the ability to verify what you are buying, and the more of them stack up, the less you are relying on anything but trust.

Red flags in how you pay

• "Send funds to this wallet address." Paying a plain address leaves no contract that guarantees you will receive tokens. A presale contract that records your purchase on the chain at least makes your claim visible.
• No contract address, or one you cannot verify. If the token exists, its address should be published in the project's own documentation, with verified source code.
• Pressure to buy now. Countdown timers, "final stage" pricing that keeps being extended, and bonuses for buying immediately are sales tactics, not information.
• Card payments to an offshore site with no regulated entity behind it.

Red flags in the token and its supply

• No published allocation. You should be able to find how much of the supply goes to the team, investors, the presale, liquidity and rewards.
• No vesting for the team. If team and insider tokens unlock at launch, they can be sold into the first trades. See token unlocks.
• A tiny float with a huge valuation. If only a small share circulates at launch, the price can be held up by very little and fall hard when supply unlocks. See FDV vs market cap.
• Unclear liquidity plans. How much of the raise goes into a trading pool, and whether that liquidity is locked, decides whether you will be able to sell at all. See liquidity locked explained.

Red flags in the promotion

• Guaranteed or projected returns. "10x at launch" is a promise nobody can make.
• Paid promotion presented as opinion. Influencer posts, sponsored articles and press-release sites are often paid placements.
• Fake social proof. Large follower counts with little real conversation, identical comments, or a live purchase ticker on the website that cannot be matched to on-chain transactions.
• Anonymous team with no track record. Anonymity is common in crypto and not wrong in itself, but it means there is nobody accountable if things go badly.
• Audits you cannot open. An audit badge should link to a report on the auditor's own site, covering the actual contract address.

Checks you can actually run

1. Find the token or presale contract address in the project's documentation and open it on a block explorer. Is the code verified? Who deployed it, and what else has that address deployed?
2. Read the contract's owner functions: can the owner mint, pause transfers, change fees or blacklist addresses? See token owner privileges and mintable tokens.
3. Check whether the presale funds on the chain match what the site claims has been raised.
4. Search for the project name together with words like "refund" or "claim" to see whether earlier buyers have had problems receiving tokens.
5. Only send what you could lose entirely.

After launch

Once the token trades, the supply becomes measurable. Paste the contract address into the token holder checker to see how much the largest private wallets hold, and read rug pulls explained for the patterns that most often follow a weak launch.