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Crypto catfishers ditch fake exchanges for approval phishing scams

According to on-chain analytics firm Chainalysis, romance scammers increasingly use this method to steal their victim’s hard-earned crypto.

Crypto romance scammers — a cohort of crypto-stealing smooth-talkers — appear to have a new trick up their sleeves: targeted approval phishing.

In a Dec. 14 report from on-chain analytics firm Chainalysis, the firm noted that the technique has seen explosive growth over the past two years, with at least $374 million in suspected stolen crypto in 2023.

Approval phishing is a crypto scam where victims are tricked into signing transactions that give scammers access to wallets, allowing them to drain funds. While this isn’t new, Chainalysis said the technique is now utilized more often by pig-butchering scammers.

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‘Clear runway’ opens for all Bitcoin ETF approvals in Jan: Analysts

The SEC’s delays on two spot Bitcoin ETFs could mean it’s lining up to approve all pending applications in one swoop, say analysts.

Bitcoin (BTC) spot exchange-traded funds (ETFs) in the United States now have a “clear runway” to potential simultaneous approvals after an advanced decision to delay the bids of Franklin Templeton and Hashdex ETFs, according to ETF analysts.

In a Nov. 28 X (Twitter) post, Bloomberg ETF analyst James Seyffart said the Securities and Exchange Commission delayed its decision on the applications 34 days earlier than the Jan. 1, 2024, decision deadline.

The SEC requested comments on forms by Templeton and Hashdex that are necessary for the ETFs to eventually be listed and start trading. The comment and rebuttal period will last 35 days.

Seyffart and his colleague Eric Balchunas had placed 90% odds on spot Bitcoin ETF approvals by Jan. 10 next year, and the twin delays “all but confirms for me that this was likely a move to line every applicant up for potential approval by the Jan 10, 2024 deadline,” Seyffart said.

Balchunas agreed, posting to X that the SEC was “prob looking to get them out of the way, clear runway.”

Commercial litigator Joe Carlasare thinks, however, the delays increase the probability of a March 2024 approval as the comment period for Franklin’s ETF bid was extended until Jan. 3, 2024, and the SEC typically takes a maximum of three weeks to review comments.

“January is still likely the favorite though,” he added.

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On Nov. 28, Franklin also submitted an updated Form S-1 for its ETF — a document registering securities with the SEC — after Seyffart earlier highlighted it was the only bidder yet to submit an updated prospectus.

Reacting to the filing, Balchunas said while he’s in favor of letting all ETFs launch simultaneously, it “seems kinda unfair” that Franklin might be allowed to launch its ETF the same day as other providers despite submitting the form months later.

There are currently 12 spot Bitcoin ETFs before the SEC, including bids from Grayscale and BlackRock. Most have final decision dates in March, besides ARK Invest’s bid, which the SEC must approve or deny by Jan. 10, 2024.

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Revoke adds new feature after users complain of fake approvals scam

Scammers have found a new way to make crypto by luring users into revoking fake approval transactions.

Approval management platform Revoke has issued a fix aimed at mitigating a new crypto scam, which involves baiting crypto users into revoking “fake approvals” and then stinging them with excessively high transaction fees. 

On July 9, Revoke.cash stated that it had received reports of people seeing unknown approval transactions in their transaction history.

In reality, scammers have been using what are known as “gas tokens” to trick victims into believing they have suspicious transaction approvals.

“It turns out that this is a new scam where scammers use so-called gas tokens to steal money when victims revoke these "fake approvals".”

Gas tokens were developed when Ethereum network fees started climbing. Users could effectively store cheap gas during periods of low network demand.

“This allowed users to mint gas tokens when fees were low, and burn them when fees were high, effectively "locking in" the lower fee,” explained Revoke.

However, Revoke said that scammers have been creating fake gas tokens that they airdrop with fake approvals that users think they need to revoke.

The spurious tokens have been programmed to generate a lot of gas during the revoked transaction with the newly minted gas tokens being sent back to the scammers leaving the victim with a high transaction fee.

Revoke said it has now addressed the issue by adding a check that disables revoking approvals if there's an excessive gas fee. It advised users to ignore the fake approvals:

“Best thing to do with these fake approvals / fake tokens is to ignore them. As long as you don't interact with them, they can't steal your funds.”

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Revoke is a preventative tool that helps users practice safer crypto wallet behavior by managing or revoking active approvals such as those no longer required by DeFi protocols. 

Revoke's new fix to combat the gas token approval scam. Source: Twitter

Platforms such as Revoke have been urging users to revoke approvals for Multichain following the multi-million dollar network exploit on July 7. This has given scammers a new avenue to lure victims to approve their fake transaction revokes.

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