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$50 Million in Cryptocurrency May Have Been Stolen From Upbit Exchange

June G. Bauer

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UpBit-Exchange-Hacked

Multiple sources have claimed Upbit, the largest cryptocurrency exchange in South Korean, may have been hacked after 342,000 Ethereum ($50 Million) coins transferred out of the exchange’s wallets to unknown wallet. The exchange platform went into unscheduled maintenance right after the transfer.

Cryptocurrency monitoring service “Whale Alert” has recorded the following transaction:

The above ETH transaction might indeed be a hack: the TX was sent with a gas fee of 1000 gwei (100x the price for a “fast” transaction). This person wanted to be 1000% sure the TX goes through ASAP. No exchange ever sends a TX with this fee.

The exchange have posted the bellow notice on its website:

This is a developing story, we will keep you updated about this alleged security breach.

Pop cultureaholic, Technology expert, Web fanatic and a Social media geek. If you have any questions or comments please feel free to email her at [email protected] or contact her on Twitter @JuneTBauer1

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Exchanges

Tradesatoshi Cryptocurrency Exchange to Shut Down

Sying Tien

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TradeSatoshi shutting down

UK based cryptocurrency exchange “TradeSatoshi” has made an announcement stating that the platform is closing down by March 1st. The exchange has been operating since 2015.

According to TradeSatoshi’s announcement, the reason for shutting down is that the exchange is not able to satisfy the customers’ needs when it comes to the security of the funds and other related issues.

The exchange also warned the users not to make any new deposits. Tradesatoshi won’t process any such deposits. Tradesatoshi has also requested it’s users who haven’t completed their KYC (Know your Customer) verification process till now to complete it immediately in order to withdraw their funds.

Some users have reported that the AML/KYC process might take as long as two months to complete, and that compliance is impossible before the deadline. Some have reported that they’re unable to withdraw funds even after meeting the additional AML/KYC requirements.

While some other users have reported that they’re unable to withdraw funds despite the fact that ave already completed the KYC process.

Trade Satoshi was launched in late 2015 and it is headquartered in London, UK. According to CoinGecko, the exchange 24 hours trading volume is 12.98 BTC ($153,212). Trade Satoshi currently support exchange supports 150 cryptocurrencies and 506 market trading pairs.

The exchange became popular because of the lower trading limits, low listing fees and it’s friendly chat box where you can live chat to other traders from all over the world.

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Poloniex Exchange Forces Password Reset After an Alleged Data Leak

June G. Bauer

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Poloniex data leak

Yesterday, Poloniex cryptocurrency exchange sent an email to some of its users alerting them about a potential security breach after an alleged list containing Poloniex’s users email addresses and passwords was posted on twitter, which could be used by hackers to gain access to their Poloniex accounts.

While almost all of the email addresses listed do not belong to Poloniex accounts, we are forcing a password reset on any email addresses listed that do have an account with us, including yours.

the exchange wrote in its email notification to the affected users.
A screenshot of Ploniex’s email

It’s unclear how the email addresses and passwords were posted on Twitter in the first place and what percentage of the leaked data contained current data from Poloniex customers. That left many users bewildered whether the leak is real or not.

The daily trading volume on Poloniex exchange is $138,972,143, which makes it within the top 50 cryptocurrency exchanges.

Last November, TRON founder Justin Sun confirmed that he was one of the investors who acquired Poloniex from Circle group.

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Exchanges

Graviex Blames Malicious DDoS Attack After The Exchange Went Offline

June G. Bauer

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Graviex-Ddos-Attacks

Mysterious attackers have taken down Graviex cryptocurrency exchange over the last couple of days using DDoS (distributed denial-of-service) attacks.

The DDoS attacks took place on Sunday and Monday, December 29 and 30 , and have targeted Graviex’s main exchange website. During the DDoS, attackers successfully managed to overload two of Graviex’s network providers and managed bring down Graviex’ external connections to other ISPs.

The attackers, which appears to actually own a DDoS botnet contacted Graviex’s team demanding ransom payments,but the exchange refused to pay.

At the time of writing, the exchange now appears to be online and fully functional.

A distributed denial-of-service (DDoS) attack occurs when multiple systems flood the bandwidth or resources of a targeted system, usually one or more web servers. Such an attack is often the result of multiple compromised systems (for example, a botnet) flooding the targeted system with traffic.

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