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Bitcoin at Record Highs: Experts Warn of Fraud, Volatility, and Security Risks

25.08.2025 119 times read 4 Comments

Bitcoin Purchase: Expert Warns of Common Fraud Scheme

According to the Berliner Morgenpost, Bitcoin has recently reached new all-time highs, with the price exceeding 120,000 US dollars. Despite this, Sandra Klug from the Verbraucherzentrale Hamburg cautions against excessive expectations. She describes Bitcoin as primarily speculative and unsuitable for retirement planning due to its high volatility and lack of guarantees for future profits or even continued existence.

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Klug explains that many victims of Bitcoin fraud report transferring money to providers for crypto investments after being contacted by supposed advisors who promise high returns. These advisors often become unreachable after receiving the funds, and the alleged balances are never paid out. Klug recommends that risk-averse investors educate themselves about blockchain and decentralized currencies to reduce the risk of falling for scams.

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"Kryptowährungen sind definitiv kein Altersvorsorgeprodukt. Der Kurs kann sehr stark schwanken. Es gibt keine Garantie, dass diese Währungen in Zukunft Gewinn abwerfen oder überhaupt noch existieren." – Sandra Klug, Verbraucherzentrale Hamburg
  • Bitcoin reached over 120,000 US dollars.
  • Klug warns: Bitcoin is speculation, not suitable for retirement.
  • Common scam: Promised high returns, advisors disappear after receiving money.
  • Klug recommends ETF savings plans and a liquidity buffer for retirement planning.
  • Comprehensive consultation at Verbraucherzentrale Hamburg costs 180 euros for 1.5 hours.

Summary: The current Bitcoin hype is accompanied by significant risks and fraud schemes. Experts recommend traditional investment products for retirement and warn against using essential funds for speculative crypto investments. (Source: Berliner Morgenpost)

Spar Switzerland Accepts Bitcoin: Over 100 Branches Go Crypto

The NZZ reports that more than 100 Spar Switzerland stores now accept Bitcoin and stablecoins as payment. Customers can pay for everyday items by scanning a QR code at the checkout with their crypto wallet. The process is similar to a Twint transaction and is already being used daily, even though Spar has not yet actively promoted the new payment method.

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Spar benefits from significantly lower transaction fees—about two-thirds less than Twint or card payments. DFX, the Zug-based company providing the technical solution, charges Spar a 0.2 percent fee per transaction. For customers, transactions are free when using the Frankencoin, a stablecoin pegged 1:1 to the Swiss franc. Payments with other cryptocurrencies such as Bitcoin, Ether, Solana, USDC, and USDT are also possible, with DFX converting them to francs in the background.

Payment Method Transaction Fee (for Spar)
Twint/Cards Standard (2/3 higher than crypto)
Crypto (via DFX) 0.2%
Frankencoin (Stablecoin) 0% (for customers)
  • Over 100 Spar branches accept crypto payments.
  • Transaction fees for Spar are reduced by about two-thirds compared to traditional methods.
  • DFX provides the technical infrastructure and charges 0.2% per transaction.
  • Payments are possible with Bitcoin, Ether, Solana, USDC, USDT, and Frankencoin.
  • Frankencoin is pegged 1:1 to the Swiss franc and is created by depositing collateral such as Bitcoin or Ether.

Summary: Spar Switzerland is pioneering crypto payments in retail, offering customers and the company significant cost savings and a seamless payment experience. The move could pressure other retailers to follow suit. (Source: NZZ)

House or Bitcoin: Which Is the Better Investment?

According to FinanzNachrichten.de, 80% of Germans wish to own a home, but 53% still rent. Private investors in Germany invest between 1 and 1.5 billion euros annually in real estate. The average purchase price for a single-family home is between 450,000 and 500,000 euros, with buyers typically providing 20–25% equity (100,000–125,000 euros).

Historically, real estate prices in Germany increase by 3–5% per year, but after deducting ancillary costs, the net increase is estimated at 1.5–2.5%. Over ten years, this results in a value increase of 35–60%, bringing the house's value to 675,000–800,000 euros. With leverage, the return on equity is 175–300% (275,000–400,000 euros), or 150–220% after costs. If rented, the net rental yield averages 2% after costs, increasing the total return to 170–245% over ten years.

In comparison, the average nominal Bitcoin price target for 2025 is 179,000 euros, for 2030 is 545,000 euros, and for 2035 is 675,000 euros. This corresponds to a projected return of 445% in five years and 575% in ten years. After accounting for inflation (2–3% per year, resulting in a 25–30% loss of purchasing power), the real return is about 375–400%. Thus, real estate offers a realistic return of 150–220% (or 170–245% if rented) over ten years, while Bitcoin could offer 370–400% after inflation and without ongoing costs.

Investment 10-Year Return (after costs/inflation)
Real Estate (owner-occupied) 150–220%
Real Estate (rented) 170–245%
Bitcoin 370–400%
  • Real estate offers more security but lower returns compared to Bitcoin.
  • Bitcoin's sustainability is questioned by some experts due to decreasing block rewards.
  • New scaling solutions like Bitcoin Hyper could further increase Bitcoin's potential returns.
  • Bitcoin Hyper's presale has raised 11.85 million USD, with the HYPER coin currently priced at 0.012795 USD.

Summary: While real estate provides stability and moderate returns, Bitcoin offers significantly higher potential returns, albeit with greater risk and volatility. New technologies could further enhance Bitcoin's utility and value. (Source: FinanzNachrichten.de)

Why Isn't Bitcoin Rising?

As reported by stuttgarter-nachrichten.de, despite hopes for a Federal Reserve interest rate cut following Jerome Powell's speech, the Bitcoin price did not rise as expected. Instead, Bitcoin experienced a brief surge followed by a sudden "flash crash." The cause was the sale of 24,000 Bitcoins, worth over 2.7 billion US dollars, by an unknown large investor (whale) over the weekend.

This massive sale flooded the market with more supply than demand, causing the price to drop rapidly from around 114,000 to 110,000 US dollars within minutes. The abrupt price drop also triggered the liquidation of trading positions worth several hundred million US dollars, as many traders' risk limits were breached.

Event Impact
Sale of 24,000 BTC Market flooded, price drop from 114,000 to 110,000 USD
Liquidations Hundreds of millions of USD in trading positions liquidated
  • Bitcoin price is highly sensitive to large-scale sales by major investors.
  • Sudden market movements can trigger widespread liquidations among leveraged traders.

Summary: The Bitcoin market remains highly volatile and susceptible to large transactions by major holders, which can cause rapid and significant price swings. (Source: stuttgarter-nachrichten.de)

Social Engineering: Crypto Investor Loses Bitcoin Worth 90 Million USD

Golem reports a case where a crypto investor lost Bitcoin valued at 90 million US dollars due to social engineering. The article highlights the risks associated with holding large amounts of cryptocurrency and the sophisticated methods used by attackers to gain access to digital assets.

  • Investor lost Bitcoin worth 90 million USD.
  • Attackers used social engineering techniques to gain access.
  • The case underscores the importance of robust security measures for crypto holders.

Summary: Even experienced investors are vulnerable to social engineering attacks, emphasizing the need for heightened security and vigilance in the crypto space. (Source: Golem)

Sources:

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Ok so like i saw sumone in the other comments say that Spar takeing bit coin will completly change supermarkts in EU but i dont realy see it, like yea its cool you can pay with somthing digital but dosnt rly mean pepol will all want to use it instead of just a card (I dont have cryptos anyway so not an option for me do you need a specal phone app?). i member when applepay come out and everone go “this will replace cash” but now half my friends still use coins.. idk why. Aso is this Spar the same Spar thats in austria? Or that one has its own thing? Im confused, but anyways, if Spar is saving money from fees, do they give some back to us shoppers? Or its just profit for them? If I pay with Frankencoin what if the price go up? Do i profit? My cousin says its more safe to just buy groceries with coupons becuse you cant lose coupons to hackers lol.

And did anyone talk yet about the guy who lost $90 mil...?? like WTF?? how do u even "social engineer" someone out of millions, if i had even 2 bitcoins you bet Id just print out my password on paper & tape it to the roof... But srs, I think crypto seems too much risk for basic people, why all these companies try to make it normal now? Who gets the lost coins, do they just vanish or does someone becom a millionaire from stupid mistakes. Its mindblowin how internet money is actualy now in the shops, my granddad still looks for his stamp card at the gasstation lol.

Tbh I still dont get crypto or why bitcoin is worth more then a house (saw in article its like 120k for 1 coin??? are they made from gold lol), and if you can lose it all clicking a bad link or something, idk why invest, think ill stick to Twint or cash, until theres some “bitcoin for dummies” at Spar next to the magazines, would probly need that...
I gotta say, I'm actually surprised that no one has really talked about those supposedly "comprehensive" consultations at the Verbraucherzentrale in Hamburg. 180 euros for 1.5 hours sounds pretty steep if you ask me! I mean, I get that financial advice isn’t free, but if you're already worried about losing your savings to some "high yield" Bitcoin scam, who's got that kinda cash just for a chat? Feels like a catch-22.

Also, the bit about ETFs and having a liquidity buffer makes sense for regular folks, but there’s not much said about how hard it can actually be to start investing in those if you’re already living paycheck to paycheck. It's always the same – the ones who have money get advice on how to keep it, and the rest get warnings about what not to do.

But back to those scammy "advisors": Honestly, I still can’t believe so many people fall for that. Maybe I'm naive, but if someone slid into my DMs promising crazy crypto returns, I'd be outta there faster than you can say "blockchain". Guess it just shows how desperate some folks get, especially hearing about these people who made millions with Bitcoin – makes you wanna believe it’s possible for you, too. Still, the stories you read here and there, like that guy losing 90 million dollars (that’s an insane number), just proves how risky the whole space is.

Last thing – that Spar move with crypto payments: Pretty wild to see a mainstream shop in Switzerland go for this when people still can’t wrap their head around even basic ETFs. No mention though if people actually WANT to pay with Bitcoin, or if it’s mostly just for the hype. Don’t get me wrong, cool tech and all, but most people probably still just hand over their Twint or card, like always.

Anyway, guess we're living in a time where you need to take a course, pay for advice, and still cross your fingers not to get scammed just to buy bread or save for retirement. Things used to be simpler.
So if i get this right you can go entierlly to Spar with just your phone and no wallet, but what if your phone dies at the til? Also is this stablecoin realy actual swisfrancs or just another crypto? I feel like you could just make up any coin name and say its safe, maybe im missing somthing.
Wait so does that mean if Spar saves 2/3 on fees for crypto payments, Twint users are basicly paying more for the same bread, or will they drop prices now bcz of the savings or nah?

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Article Summary

Bitcoin's recent surge has led to increased fraud risks, with experts advising traditional investments for retirement and cautioning against speculative crypto use. Spar Switzerland now accepts crypto payments in over 100 stores, offering lower fees and seamless transactions, while real estate remains a stable but lower-yield investment compared to Bitcoin’s higher potential returns and volatility.

The Best Bitcoin Mining Providers at a Glance

» Infinity Hash

From our perspective, currently the best mining provider on the market. With the community concept, you participate in a mining pool completely managed by professionals. A portion of the earnings are used for expansion and maintenance. We've never seen this solved as cleanly anywhere else.

» Hashing24

A well-known and established cloud hosting company. With a good entry point and in a good market phase, a good ROI can also be generated with some patience. Unfortunately, we see the durations as a major drawback.

Comparison of the best Bitcoin mining providers
We’ve compiled an overview of the best Bitcoin mining providers. Find out now how you can earn Bitcoin every day.
Find out more now
Anzeige

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