Our guide to how to spot bitcoin scams and stay safe when trading and using cryptocurrency.
Cryptocurrencies are complicated, very confusing to new users and lightly regulated – all of which makes them an ideal target for scammers.
But with a little bit of know-how and some good old-fashioned common sense, you can do plenty to protect yourself against cryptocurrency scams.
Keep reading for the lowdown on the most common bitcoin scams and how to avoid them.
8 common crypto scams to keep an eye out for
Checklist: How to detect a crypto scam
Unsure whether a particular crypto website is a scam or not? Use this checklist to help sort legitimate providers from those platforms you’re better off avoiding altogether.
Please note that this checklist is far from foolproof, as it’s possible for a website to pass several of the above tests with flying colours and still be a scam. The important thing to remember is to do your due diligence before providing any personal or financial information to any website or app.
The first scam on the list is one that you may well be familiar with already, as it’s also been widely used to target customers in the UK.
Known as “phishing”, this type of scam occurs when you receive an unsolicited email that looks as if it’s from your bank – or, in this case, from your crypto exchange or wallet provider. This email contains a link which will take you to a site that looks almost identical to the exchange or wallet you usually use, but is actually a scam site.
Once you enter your account details on this unofficial page, the scammers have everything they need to log in to your real account and steal your funds.
How to avoid phishing scams
- Always double-check URLs to make sure you’re visiting the genuine website
- Don’t click on suspicious links that are emailed to you
- Never disclose your private key
2. Fake exchanges and wallets
In a similar vein to phishing scams, keep an eye out for fake bitcoin exchanges. They might walk and talk like a reputable exchange, but they’re merely a front to separate consumers from their hard-earned cash.
Some will entice users with promotional offers that sound too good to be true. Others pressure users into creating an account and depositing funds, perhaps even offering “bonuses” to those who deposit larger amounts. But once they have your money, these platforms might charge ridiculously high fees, make it very difficult to withdraw funds or simply steal your deposit altogether.
Other scammers have turned their attention to creating quite sophisticated fake wallet apps which, once downloaded to a user’s smartphone, can be used to steal critical account details. These apps have even made it into official, legitimate app stores like Google Play, so it pays to do your research before downloading anything to your phone.
In December 2017, the bitcoin community and South Korean authorities exposed a fake exchange known as BitKRX.
By posing as a legitimate exchange and passing itself off as a branch of KRX, a large and reputable trading platform, it was able to ensnare innocent users.
How to avoid fake exchange and fake wallet scams
- Stick with well-known and popular exchanges
- Thoroughly research any exchange or wallet before creating an account – who is the team behind the exchange or wallet? Where is the company registered? Are there reliable reviews from other users confirming its legitimacy?
- Don’t let yourself be pressured into depositing funds or providing any personal information
- Don’t just randomly pick a wallet from the app store – only download apps and software from legitimate wallet providers and exchanges
Poloniex is a large, prominent and legitimate crypto exchange. However, in 2017 it was the target of a sophisticated scam that saw at least three fraudulent Poloniex trading apps listed on the Google Play store.
Two of the apps, “Poloniex” and “Poloniex Exchange,” were downloaded more than 5,500 times before they were removed from the store. These apps asked Poloniex users to enter their account credentials, thereby giving fraudsters a way to perform transactions on behalf of users and even lock victims out of their own accounts.
3. Old-school scams
Cryptos may be based on new technology, but there are still plenty of scammers using old tricks to con unwitting consumers.
The classic example of this is an unsolicited phone call or email from someone claiming to be with the CRA. This fictional tax man will try to convince you that you owe the CRA money and you’ll be facing legal action if you don’t transfer them a certain amount of bitcoin as soon as possible.
The tried-and-tested “Nigerian prince” scam has also migrated into the world of cryptocurrency. So if you’re ever contacted out of the blue by someone overseas promising you a share in a large sum of digital currency if you help them transfer funds out of their own country, use your common sense and recognize it for the scam it is.
How to avoid old-school scams
- Use your common sense
- Don’t trust unsolicited emails or phone calls
4. Fraudulent ICOs
Seduced by the astronomical price rises bitcoin has experienced since its inception, many everyday consumers venture into the world of cryptocurrency looking for the next big thing. After all, if “the next bitcoin” ever actually arrives, getting in at the ground floor could see early-adopters earn a fortune.
And if you want to get in on the ground floor, the easiest option for the average person is to buy coins or tokens in an ICO. There’s a huge appetite for new digital currencies – in the first half of 2018 alone, ICOs raised a total of US$11.69 billion – and with many new buyers having limited knowledge of how the crypto industry works, it’s the perfect breeding ground for scammers.
Pincoin and iFan
In April 2018, the Pincoin and iFan ICOs, run by the same Vietnam-based company, are believed to have cheated more than 30,000 investors out of a combined total of US$660 million.
iFan was meant to be a social media platform for celebrities and Pincoin promised 40 per cent monthly returns to investors. Both were later shown to be multi-level marketing (MLM) scams.
This has led to the rise of fake ICOs which, with some slick marketing and a little bit of hype, can convince people to buy a cryptocurrency that doesn’t actually exist. For example, one report found that 78% of ICOs in 2017 were scams, while a separate report put that figure at above 80%.
Finally, if you’re dreaming of getting rich quick from a crypto ICO, be aware that for every ICO success story there are many, many more failures, even if the project isn’t a scam.
How to avoid fraudulent ICOs
- Thoroughly research any ICO before buying in. Look at the team behind the project, its whitepaper, the purpose of the currency, the tech behind it and the specifics of the token sale.
5. Ponzi or pyramid schemes
A Ponzi scheme is a simple but alarmingly effective scam which lures in new investors with the promise of unusually high returns. Here’s how it works: a promoter convinces people to invest in their scheme. These initial investors receive what they believe to be returns, but what are actually payouts from the money deposited by newer investors. Now satisfied that the scheme is legit, those investors who have received payouts pump more of their money into the scheme and encourage others to do the same.
Sooner or later, the scheme collapses when the promoter runs off with the money or it becomes too difficult to lure new investors. These types of pyramid schemes are nothing new and can be easy to spot, but that hasn’t stopped some crypto buyers being scammed in a handful of high-profile incidents.
In January 2018, bitcoin investment lending platform Bitconnect shut down its lending and exchange services amid allegations it was a Ponzi scheme. Launched in early 2017 with promises of returns of up to 40% per month, the platform was quick to attract criticism from the wider crypto community and soon drew the attention of regulators.
How to avoid Ponzi/pyramid schemes
- Look out for cryptocurrency projects that encourage you to recruit new investors to enjoy bigger profits
- Never trust a scheme that promises returns that sound too good to be true.
Malware has long been a weapon in the arsenal of online scammers. But thanks to the complicated and highly technical nature of cryptocurrencies, much of which isn’t well understood by most people, malware now poses an even bigger threat.
Rather than stealing credit card and bank account details, crypto-related malware is designed to get access to your web wallet and drain your account, monitor the Windows clipboard for cryptocurrency addresses and replace your legitimate address with an address belonging to a scammer, or even infect your computer with a cryptocurrency miner.
How to avoid cryptocurrency malware scams
- Update your antivirus software regularly to protect yourself against malware
- Never download and install programs unless you’re 100% sure they’re from a reputable, legitimate provider
- Don’t open suspicious attachments
7. Mining scams
Cloud mining allows you to mine cryptocurrencies like bitcoin without having to purchase the expensive hardware required to do so. There are several legitimate cloud mining services that let users rent server space to mine for coins at a set rate.
However, there are also plenty of cloud mining scams out there. Some promise astronomical (and implausible) returns and fail to disclose a range of hidden fees, while others are fronts for Ponzi scams and are simply designed to part you from your money.
How to avoid cryptocurrency mining scams
- Thoroughly research any cloud mining operation before signing up. Does it use https? Does it have a public mining address? How long has it been in business? Can you find any legitimate reviews from other users? Does the site have a registered domain name? Can the company provide proof of equipment?
- Be extremely wary of companies that “guarantee” profit
8. Pumps and dumps
Cryptocurrencies are often dismissed as a speculator’s dream come true that are ripe for a little bit of market manipulation, which has led to the rise of what are known as “pump and dump” schemes. This is where large groups of buyers target an altcoin with a small market cap, buy that coin en masse at a particular time to drive its price up (which attracts a whole lot of new buyers fueled by FOMO – a fear of missing out), and then sell to take advantage of the significant price rise.
This sort of thing is illegal in traditional securities markets, but is a common occurrence in the largely unregulated world of cryptocurrencies. In fact, there are several online groups and forums dedicated to this exact practice, so it’s important that you stay savvy and know how to steer clear of these scams.
How to avoid pump and dump scams
- Be wary of low market cap cryptos that normally have a low trading volume but that suddenly experience a sharp price rise
- Keep an eye out for “fake news” on social media that hypes particular coins
- Carefully research the credentials of any cryptocurrency before buying
In January 2018, a fake Twitter account purporting to belong to cybersecurity guru and crypto enthusiast John McAfee tweeted support for the GVT cryptocurrency, naming it “coin of the day”.
For some in the crypto community, this was good enough reason to buy some GVT, and just four minutes after the tweet was posted the price of GVT had jumped from $30 to $45 and trading volume had doubled. 15 minutes later, the price was hovering around the $30 mark once again, after early buyers had “dumped” and run.
On closer inspection, the Twitter account was revealed to be bogus and not associated with McAfee at all. Instead, it was simply a key player in a pump and dump scheme devised and implemented in a chat room called “Big Pump Signal”.
Simple tips to help you stay safe
There are plenty of other simple steps you can take to protect yourself against fraud, such as:
Disclosure: At the time of writing, the author holds ADA, ICX, IOTA, POWR and XLM.