Flashcoin Scams and How To Avoid Them

Flashcoin Scams and How To Avoid Them

Table Of Contents

  • What are Flash Coins?
  • How Do Flash Coins Scams Work?
  • How is a Bitcoin transaction confirmed?
  • How to Avoid Flash Coins Scams
  • FAQs
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Flash coin scams are popular scams that traders and cryptocurrency users fall victim to. In this article, we explain what flash coins are, how the scams work, and how to avoid flash coin scams.

What are Flash Coins?

A flash coin refers to a cryptocurrency sent to your wallet but doesn't stay there for long. It can be any cryptocurrency like Bitcoin (BTC), Ethereum (ETH), Ripple (XRP) or Solana (SOL).

How Do Flash Coins Scams Work?

Flash coins are often sent by scammers or fraudsters. They use Peer-to-Peer (P2P) trading, which is a way of buying and selling cryptocurrencies where traders buy and sell directly with each other on a cryptocurrency exchange app or website.

P2P trading can also happen off the app or website. How? Traders can directly interact with each other on a messaging platform like telegram, negotiate terms and trade cryptocurrency with each other like they would on an official platform or exchange.

What is P2P Trading: A Simple Guide for Crypto Traders and Users
(P2P) trading is a way of buying and selling cryptocurrencies where traders buy and sell directly with each other on a crypto app or website.

The Relationship Between Cryptocurrency Confirmation and Flash Coin Scams

Every cryptocurrency has a confirmation time, which is the time it takes for a transaction to be validated and added to the blockchain. For example, Bitcoin transactions are typically confirmed in about ten minutes. However, flash coins don't follow this regular confirmation period.

Flash coins appear in your wallet, making you think the transaction was successful. However, the coin disappears from your wallet after some time, leaving you confused about what happened. It may appear like your wallet was hacked, but in reality, it could be a flash coin sent to you.

However, please note that not all flash coins are scams or scam coins. Sometimes, transactions are rebroadcasted (resent on the blockchain after some hours), and it makes the initially sent coin become invalid. It's only a flash coin scam if the coin never appears in your wallet again.

bitcoins spilling from one laptop to another

These coins often vanish because they are invalid and rejected by the nodes in the blockchain network. Double-spending is a risk where a cryptocurrency can be used multiple times. Sometimes, the person initiating the transaction may modify the blockchain to reclaim the spent coins.

However, these modified transactions are eventually rejected and considered invalid by the network's nodes. Nodes are like the committee overseeing and recording all transactions on the blockchain. It's important to be cautious and wait for proper blockchain network confirmation before considering a transaction as fully complete.

How Is a Bitcoin Transaction Confirmed?

Once you send a Bitcoin transaction, it must be confirmed before it's considered final. Confirmation happens when the transaction is added to a "block" of transactions. Miners compete to solve a math problem, and the first one to solve it gets to add the block to the blockchain, which is like a public ledger.

Each block takes about 10 minutes to be added, and once it is, the transaction becomes more secure and harder to change. The more blocks that are added after it, the more confidence you can have in the transaction's validity.

To be safe, it's recommended to wait for a certain number of confirmations before considering a transaction as truly confirmed.

  • For transactions under $1,000, one or two confirmations may be enough.
  • For transactions between $1,000 and $10,000, wait for at least three confirmations.
  • For larger transactions over $10,000 or more, wait for three or more confirmations before considering it fully confirmed.

By waiting for these confirmations, you can have more confidence that your Bitcoin transaction is secure and irreversible.

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How to Avoid Flash Coins Scams

Here are three ways to avoid or at least lower your chances of falling for a flash coin scam:

  1. Trade with people you trust. Carrying out your P2P trades with a trustworthy person will save you a lot of headaches. The risk of them scamming you cannot be ruled out, but it's a better chance to take than doing business with a stranger or someone you barely know.
  2. Use a crypto exchange that offers P2P. The traders here are vetted, and resolutions will likely be handled better.
  3. Always ask for a priority fee if you're buying crypto from an unfamiliar trader. Priority fees help confirm transactions quickly.
  4. You can ask for their sellers' hash IDs or copy and paste their addresses on the blockchain explorer. It will show the transaction process and tell you whether it is invalid or valid.


Q: Can Flash Coins be reversed or cancelled after disappearing from my wallet?

A: Flash coins typically cannot be reversed or cancelled once they disappear from your wallet because the blockchain network often rejects invalid transactions

Q: Are flash coin scams specific to a particular cryptocurrency, or can they happen with any coin or token?

A: Flash coin scams can potentially happen with any cryptocurrency, not just a specific one. Scammers use this tactic to target coins and tokens, including BTC, ETH, SOL, XRP and others.

Q: Are flash coin scams more common in Peer-to-Peer (P2P) trading or on regular cryptocurrency exchanges?

A: Flash coin scams can occur in both P2P trading and regular exchanges. However, they are more commonly associated with P2P trading due to the direct interaction between traders

Q: Are there any warning signs or red flags to watch for when dealing with flash coin transactions?

A: Some warning signs include transactions that seem too good to be true, unverified or unfamiliar traders and transactions that disappear from your wallet shortly after appearing.

Q: What should I do if I suspect a flash coin scam or have fallen victim to one?

A: If you suspect a scam, stop further transactions, report the issue to the platform or exchange you used, and consider reporting it to relevant authorities. If you've fallen victim, it's important to act quickly to minimise potential losses.

Q: Can I trust cryptocurrency exchanges to protect me from flash coin scams?

A: While reputable exchanges like Obiex offer security features and dispute resolution services, they cannot guarantee protection against flash coin scams. Users must be cautious when conducting cryptocurrency transactions.

Q: How Many Confirmations Should I Wait for Before Considering a Transaction Secure?

A: For transactions under $1,000, one or two confirmations may be enough.

For transactions between $1,000 and $10,000, wait for at least three confirmations.

For larger transactions over $10,000 or more, wait for three or more confirmations for full security.

Disclaimer: This article was written by the writer to provide guidance and understanding of cryptocurrency trading. It is not an exhaustive article and should not be taken as financial advice. Obiex will not be held liable for your investment decisions.