In what analysts described as the most aggressive government action against cryptocurrency trading to date, China announced on February 5, 2018, that it would use its Great Firewall to block all domestic and foreign cryptocurrency exchange websites. The sweeping directive, reported by the South China Morning Post and confirmed through the People’s Bank of China-affiliated Financial News, marked a dramatic escalation of Beijing’s months-long campaign against digital asset trading.
The announcement sent immediate shockwaves through an already reeling cryptocurrency market. Bitcoin, which had already been sliding amid a broader market rout, plummeted below $7,000 to $6,955 — its lowest level since November 2017. Ethereum fell to approximately $698, and the total cryptocurrency market capitalization continued its rapid contraction from the highs seen just weeks earlier.
TL;DR
- China announced it would block all crypto exchange websites using the Great Firewall
- Cryptocurrency ads scrubbed from Baidu and Weibo
- PBOC warned of “fraud and pyramid selling” in crypto markets
- Move closes loophole allowing Chinese citizens to access foreign exchanges
- Action coincided with global bank credit card bans, compounding market panic
Closing the Foreign Exchange Loophole
China had already taken significant steps against cryptocurrency trading in 2017, banning initial coin offerings (ICOs) in September and forcing the closure of domestic cryptocurrency exchanges. However, determined Chinese traders had found ways to circumvent these restrictions by accessing offshore platforms based in countries with more permissive regulatory environments. The February 5 announcement was specifically designed to close this loophole.
According to the People’s Bank of China, the decision was driven by evidence that “overseas transactions and regulatory evasion have resumed.” The central bank’s Financial News publication warned that despite the earlier bans, “risks are still there, fueled by illegal issuance, and even fraud and pyramid selling.” The PBOC explicitly stated it would “tighten regulations” on Chinese citizens’ participation in overseas cryptocurrency transactions and ICOs.
The Great Firewall Turns to Crypto
China’s Great Firewall — the sophisticated system of internet censorship that blocks access to platforms like Google, Facebook, and Twitter within the country — was now being turned against cryptocurrency exchanges. The decision represented a significant technological escalation, as the firewall’s deep packet inspection capabilities would make it considerably more difficult for Chinese citizens to reach offshore trading platforms, even through VPN connections.
The crackdown extended well beyond exchange access. In a coordinated move, cryptocurrency-related advertisements vanished entirely from Baidu, China’s dominant search engine, and Weibo, the country’s most popular social media platform. This mirrored actions taken by Facebook just days earlier, when the social network announced its own ban on cryptocurrency advertising on January 30, 2018.
A Coordinated Global Regulatory Squeeze
China’s announcement did not occur in isolation. On the very same day, the United Kingdom’s Lloyds Banking Group announced it would ban customers from using credit cards to purchase cryptocurrencies. This followed similar moves by major U.S. banks including Bank of America, J.P. Morgan, Citigroup, Capital One, and Discover, which had enacted their own credit card crypto purchase bans over the preceding weekend.
The convergence of actions from both government regulators and private financial institutions across multiple continents created what market analysts described as a coordinated squeeze on retail cryptocurrency demand. By simultaneously restricting the ability to purchase cryptocurrencies through credit and cutting off access to trading platforms, authorities and banks effectively limited the on-ramps available to average investors.
Impact on Global Market Structure
The Chinese crackdown had particularly significant implications for global cryptocurrency market structure. Prior to the 2017 bans, Chinese exchanges had accounted for a substantial portion of global Bitcoin trading volume. The February 5 move to block foreign exchanges suggested that Chinese capital had been flowing back into crypto markets through offshore platforms at a scale large enough to attract regulatory attention.
For cryptocurrency proponents, the developments reinforced the fundamental tension between decentralized digital assets and centralized government control. Bitcoin was originally designed to operate outside the traditional financial system, but the February 5 actions demonstrated that governments still possessed powerful tools to restrict access and suppress demand within their borders.
Why This Matters
China’s February 5, 2018 decision to deploy the Great Firewall against cryptocurrency exchanges represented a turning point in the global regulatory approach to digital assets. It demonstrated that major governments were willing to use their most powerful censorship tools to restrict cryptocurrency access, fundamentally altering the risk calculus for the entire market. The coordinated nature of the crackdown — spanning Chinese internet censorship, U.S. credit card bans, and U.K. banking restrictions — showed that regulatory pressure on cryptocurrencies was becoming a global phenomenon rather than isolated incidents. This day would be remembered as one of the darkest in early cryptocurrency history, but also as a stress test that ultimately strengthened the resolve of the decentralized finance movement.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. Cryptocurrency investments carry significant risk. Past performance is not indicative of future results. Always conduct your own research before making investment decisions.
was trading on bter.com when this hit. site went dark in minutes. still have 0.3 btc i never got out
0.3 btc on bter. rough. i had some on liqui that vanished around the same time. 2018 was a graveyard for small exchanges
0.3 btc on bter. that hurts. had friends who lost everything on coinsquare around the same time. 2018 was brutal for small exchange users
BTC dropping to 6955 on this news was actually a great buy signal in hindsight. classic overreaction to China FUD
PBOC calling crypto fraud and pyramid selling while running their own capital controls lmao
bought that dip at 6955 and held through 2018 pain. respect if you actually did, most people who claim they did sold at 8k
PBOC calling crypto a pyramid scheme while selling digital yuan to the same citizens they just blocked from alternatives. the playbook never changes
otoshi_sean digital yuan is just capital controls with extra steps. they banned crypto not because its dangerous but because it gives people an exit door
people forget china banned crypto like five separate times and the market panicked less each iteration. by 2021 the china ban news barely moved price for 24 hours
btc_archaeologist_ exactly, each ban had diminishing returns on price impact. the 2013 ban crashed the market 50%, the 2017 one maybe 30%, by 2021 it was a 5% blip then recovery within days
scrubbing crypto ads from baidu and weibo was the actual killshot. firewall blocks the tech, media blackout kills the demand. surgical execution by the PBOC
the digital yuan is the endgame. china was never against crypto, they were against capital flight they couldnt control. cbdc gives them surveillance crypto always promised to remove
BTC dropping to 6955 from the firewall news was the final capitulation of that cycle. everyone who bought the china ban bottom in feb 2018 got rekt for 10 more months
weibo scrubbing crypto ads the same week was the real signal. the firewall was headline news but social media suppression killed retail interest faster
crypto ads scrubbed from baidu AND weibo in the same week. chinese normies had literally zero way to discover crypto after this. the firewall move was theater, the media blackout was the real killshot
the ad scrub was the real weapon. firewalls can be bypassed but removing crypto from every mainstream chinese platform killed organic adoption
btc at $6955 and the market still found a bottom two days later. china fud was already priced in by round three of the ban
sin0_tracker nailed it, the firewall was always a sideshow. baidu and weibo scrubbing crypto content is what actually starved adoption in china
blocking exchange websites was theater. scrubbing crypto from Baidu and Weibo was the real killshot. chinese normies had zero way to discover crypto organically after the media blackout
gfw_survivor_ exactly. the firewall was always bypassable with VPNs. but removing every chinese language crypto resource from search results killed organic adoption for years
liaowei_ bought that dip at 6955 and held through 2018 pain. respect if you actually did, most people who claim they did sold at 8k
blocking exchange websites via the great firewall in feb 2018 was the real nuclear option. otc desks in china exploded after this
gfw_witness the OTC desk explosion was wild. wechat groups went from 200 people to 2000 overnight after the firewall went up. anyone with a hardware wallet became a liquidity provider
PBOC calling it fraud and pyramid selling while quietly developing the digital yuan is peak government logic. they werent against crypto, they were against competition
the great firewall could block exchanges but OTC desks in shenzhen just moved to telegram overnight. PBOC won the PR battle and lost the actual war on capital flight
my cousin in shenzhen was running an OTC desk through wechat groups within hours of this announcement. firewall did literally nothing except move volume underground
PBOC banned crypto for the 47th time and the market still panicked. youd think traders would learn to ignore china fud by round 3