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Privacy will unlock blockchain’s business potential

Opinion by: Eran Barak, CEO at Midnight 

It’s been almost 16 years since blockchain emerged from its esoteric fringes to enter global discourse, evidenced most recently by continued backing from Wall Street incumbents. Despite this remarkable ascendancy, the unfortunate truth is that this technology has yet to realize its true business potential. A core challenge persists: Too much sensitive data remains publicly unshielded.

The crux of the issue is that companies must keep business data confidential, and people strive to safeguard their personal information as best they can. Once data is put on a public blockchain, however, it becomes irreversibly and indefinitely exposed.

Even if a business takes every possible precaution to conceal data, mistakes made by others or vulnerabilities in the system can expose sensitive onchain data or metadata, including participants’ identities. This can lead to privacy breaches, compliance violations or both, undermining the foundational assumption that blockchain is trusted and underscoring the importance of robust measures to protect sensitive data.

On the other side of that coin, concealing activity on a blockchain can open the door to money laundering, triggering negative government responses. Instances in which this has occurred have led to a false impression that governments oppose Web3 privacy, a criterion businesses fundamentally need for them to adopt the technology. 

From whichever angle we look at it, maintaining privacy onchain is a real and complex issue for Web3. Until we solve it, businesses will not and should not be expected to cross the chasm. 

The belief that governments oppose privacy on the blockchain is wrong

Web3 entrepreneurs have grown to fear that building decentralized applications and businesses that provide financial anonymity could land them in regulatory trouble. Just look at Samourai Wallet, whose co-founders were charged with money laundering, or Tornado Cash, whose developer was sentenced to 64 months in prison for similar reasons. 

These responses have led to a consensus that governments are opposed to privacy altogether when it comes to blockchain. 

Recent: AI agents and blockchain are redefining the digital economy

This couldn’t be further from the truth. Governments don’t oppose privacy but mandate it across industries. Data protection laws, like the General Data Protection Regulation or the Health Insurance Portability and Accountability Act, are in place to ensure businesses protect our customer data from misuse and security threats.

The real issue these high-profile cases reveal is that Web3 measures to protect data have created opportunities for misuse, enabling the facilitation of criminal activities that have understandably raised serious concerns on behalf of governments. Blockchain data protection capabilities should not undermine established cross-jurisdictional laws safeguarding the global community from terrorism, human trafficking, fraud and other criminal offenses. 

This begs the question: What does privacy, done right, look like?

Selective disclosure

When it comes to using blockchain, protecting sensitive data is typically accomplished by either keeping the data offchain, or encrypting data onchain. The latter is not durable privacy given quantum computing’s rapid advances in cracking encryption. 

The advent of zero-knowledge (ZK) technology, a complex cryptographic technique, allows users to ensure sensitive data remains offchain by sharing attestations about the validity of the data instead. In Web3, ZK has emerged as a transformative way to enhance privacy as it enables untrusted parties to validate that a transaction has occurred without sharing any information about the transaction. 

Decentralized applications can exercise selective disclosure by choosing between putting data onchain (full disclosure), putting it onchain with encryption (disclosure via viewing keys) or using ZK to only publish attestation about the data (offering utility without any disclosure). Selective data disclosure only solves half of the puzzle. It was not designed to account for metadata.

The next privacy frontier

Metadata, the information surrounding our data, is an under-discussed component of blockchain’s exposure of sensitive information; it can be used to make inferences, creating an added layer of vulnerability even when the data itself is concealed. 

For example, through transaction metadata, investment and trading strategies can be inferred in addition to other behavioral patterns. For businesses, the implications of this can be detrimental to their growth and ability to stay ahead of competitors. They can’t afford to have trade secrets and strategies, or even the identities of other parties they are transacting with, made public.

The need to protect metadata and remove the ability to make inferences is paramount to security and can be addressed using a private token. Such capability can, however, be easily misused for money laundering.

If using a private token is not the solution, and using a public token does not provide sufficient levels of confidentiality, then the way to solve this challenge is to rethink Web3’s approach to protecting metadata altogether. We need to combine the benefits of both approaches, effectively creating a dual-asset system in which a public and a private token are used. Each asset functions independently, meaning specific restrictions can be placed to prevent illicit activities such as money laundering while retaining all the benefits.

A powerful framework

The dual-asset system enables confidentiality without the ailments shielding metadata usually brings, making compliance and business policy enforcement possible. By combining this tokenomics structure with selective disclosure, privacy and regulatory compliance can coexist on the blockchain, which will have resounding effects on adoption and innovation.

Opinion by: Eran Barak, CEO at Midnight.

This article is for general information purposes and is not intended to be and should not be taken as legal or investment advice. The views, thoughts, and opinions expressed here are the author’s alone and do not necessarily reflect or represent the views and opinions of Cointelegraph.

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Trump has acted for his country, I will act in Britain’s interests, says Starmer

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Trump's tariffs are about something more than economics: power

Donald Trump has acted for his country and I will act in Britain’s interests, Sir Keir Starmer has said after the US president imposed 10% tariffs on UK goods.

The prime minister told business chiefs at an early morning meeting in Downing Street: “Last night the president of the United States acted for his country, and that is his mandate.

“Today, I will act in Britain’s interests with mine.”

Politics latest: Starmer says UK will react to tariffs with ‘cool and calm head’

Mr Trump announced sweeping tariffs on countries around the world, with the UK getting off relatively lightly with 10% tariffs – branded “kind reciprocal” by the president – compared with China, which will have to pay 54% tariffs and 20% for the EU.

A previously announced 25% tariff on British car imports to the US came into effect at 5am on Thursday.

Sir Keir said the government is moving “to the next stage of our plan” after negotiations failed to fend off any tariffs ahead of Wednesday’s announcement.

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He promised any decisions “will be guided only by our national interest, in the interests of our economy, in the interests of businesses around this table, in the interests of putting money in the pockets of working people”.

Keir Starmer hosts a meeting with business leaders in 10 Downing Street following the announcement of tariffs by US President Donald Trump.
Pic: Simon Dawson/No 10 Downing Street
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Sir Keir Starmer hosted business leaders in Downing Street on Thursday morning. Pic: Simon Dawson/No 10 Downing Street

“Clearly, there will be an economic impact from the decisions the US has taken, both here and globally,” he told the business leaders.

“But I want to be crystal clear: we are prepared, indeed one of the great strengths of this nation is our ability to keep a cool head.”

Business Secretary Jonathan Reynolds told the Commons on Thursday the government is considering retaliatory measures and requested British businesses let him know what the tariff implications will be for them.

An “indicative list of potential products” that could be targeted was later published, with 8,364 categories covering about 27% of UK imports from the US.

Earlier, Mr Reynolds told Wilfred Frost on Sky News Breakfast his “job is not done” when it comes to negotiating a trade deal

Mr Reynolds refused to say if the tariffs might cause a global recession and said the UK has safeguards in place to ensure it is not flooded with goods that would have gone to other countries.

“We’ll take any powers we need to protect the British people and the British economy from that,” he said.

“What we have directly within our power, alongside that is, of course, the ability to negotiate a better deal in the national interest for the UK. That’s been our approach to date and we’ll continue with that.”

Read more:
World reacts to Trump’s tariff announcement
Tariffs will have consequences for globalisation, the US economy and geopolitics
Trump’s tariffs explained

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Moment Trump unveils tariffs chart

UK will be template for other nations’ deals

The business secretary also suggested if the UK is successful in negotiating a deal with the US “there’ll be a template there” for other countries to “resolve some of these issues”.

He reiterated statements he and the PM have made over the past few days as he said: “America is a friend, America’s our principal ally.

“Our relationship is an incredibly strong economic one, but also a security one, a political one as well.”

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Sky’s Ed Conway examines how economies across the world are impacted by tariffs

Government ‘very slow’ to start talks

Conservative shadow home secretary Chris Philp told Sky News the government had been “very slow” to start negotiating a free trade agreement with the US, and they should have started when Mr Trump was elected in November, even though he did not get sworn in until the end of January.

He said the UK being hit by a lower tariff than the EU was “one of the benefits of Brexit”.

However, he said the 25% tariff on car exports to the US is “very, very serious” and the global impact is “bad news for our economy”.

Relief in Westminster – but concessions to Trump to come

It has been quite a rollercoaster for the government, where they went from the hope that they could avoid tariffs, that they could get that economic deal, to the realisation that was not going to happen, and then the anticipation of how hard would the UK be hit.

In Westminster tonight, there is actual relief because the UK is going to have a 10% baseline tariff – but that is the least onerous of all the tariffs we saw President Trump announce.

He held up a chart of the worst offenders, and the UK was well at the bottom of that list.

No 10 sources were telling me as President Trump was in the Rose Garden that while no tariffs are good, and it’s not what they want, the fact the UK has tariffs that are lower than others vindicates their approach.

They say it’s important because the difference between a 20% tariff and a 10% tariff is thousands of jobs.

Where to next? No 10 says it will “keep negotiating, keep cool and calm”, and reiterated Sir Keir Starmer’s desire to “negotiate a sustainable trade deal”.

“Of course want to get tariffs lowered. Tomorrow we will continue with that work,” a source added.

Another source said the 10% tariff shows that “the UK is in the friendlies club, as much as that is worth anything”.

Overnight, people will be number-crunching, trying to work out what it means for the UK. There is a 25% tariff on cars which could hit billions in UK exports, in addition to the blanket 10% tariff.

But despite this being lower than many other countries, GDP will take a hit, with forecasts being downgraded probably as we speak.

I think the government’s approach will be to not retaliate and try to speed up that economic deal in the hope that they can lower the tariffs even further.

There will be concessions. For example, the UK could lower the Digital Services Tax, which is imposed on the UK profits of tech giants. Will they loosen regulation on social media companies or agricultural products?

But for now, there is relief the UK has not been hit as hard as many others.

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Trump’s tariffs will have an impact before too long – but how will the UK respond?

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Trump's tariffs will have an impact before too long – but how will the UK respond?

The list has landed.

More than 400 pages of thousands of goods that could be affected by reciprocal tariffs against the US.

Everything from fresh domestic ducks to sea-going dredgers makes the cut; most symbolic, however, are iconic American items like jeans, motorcycles and whiskey.

Would Donald Trump stand for a levy on Levi’s? It’s not the first time this battle has played out.

When the US president announced tariffs on steel and aluminium in his first term, the EU responded with its own – including a symbolic 25% tax on American whiskey.

At the time, the UK, then an EU member, followed suit.

But as the UK tries to carve its own path outside the bloc, vindicated by the baseline 10% tariffs imposed instead of the EU’s rate of 20%, the aim is to avoid retaliation.

The government want us to know “all options are on the table” – but that is not how they want this to play out.

“This is not a short-term tactical exercise,” the prime minister said this morning.

Despite the business secretary’s best efforts during his recent trip to Washington to try to secure a UK tariffs carveout, no deal was reached in time.

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How will tariffs hit working people?

Mr Trump wanted his big bang, board brandishing moment; carveouts for certain countries would have softened the impact of his speech.

But with 90-plus countries on the tariff billboard, how far along the queue is any UK deal?

And how much are we willing to give? Will the sensitive subject of chlorinated chicken be on the table? What of the agreement to cut taxes on big tech companies that Mr Trump wants?

Lots of questions. The day after the surreal night before is too soon to know all the answers, but this is about politics as much as it is about economics.

Read more:
There were no winners from Trump’s tariff gameshow
Do Trump’s numbers on tariffs really add up?

As the prime minister launched Labour’s local election campaign in Derbyshire today, he talked about potholes, high streets and school meals. Every question I heard was about tariffs.

Decisions made across the Atlantic are looming large. Tariffs may not directly sway many votes in the local elections, but the consequences for Rachel Reeves’s fiscal headroom and the amount of money she has to spend, or save, will have an impact before too long.

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Woman whose son Martyn Hett died in Manchester Arena terror attack welcomes new law in his name

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Woman whose son Martyn Hett died in Manchester Arena terror attack welcomes new law in his name

There is a certain steel about a mother who has lost a child.

It’s hard to put your finger on, but perhaps after going through hell you re-emerge made of a different material to the rest of us.

Figen Murray has been utterly relentless after her son Martyn Hett was killed in the Manchester Arena terror attack at an Ariana Grande concert in May 2017.

When she worried that politicians’ support was wavering last year, she walked 200 miles from the place Martyn died to Downing Street – and needed a hip replacement after.

And on Thursday, Martyn’s Law – rules to better train staff and safeguard venues against terrorists – was passed by royal assent, finally becoming law.

I sat down with Figen just before she went into Number 10 Downing Street to meet the prime minister, and she told me after six years of campaigning, the moment “feels surreal”.

She continued: “The Manchester attack was a wake up call. But it also made question, who are these people who do these things? Why are they doing it? What are governments doing about it? And I realised the only way I could get the answers was to educate myself – so I did a masters in counter-terrorism.

More on Keir Starmer

I’ve recognised that people were radicalised. When you were a newborn baby, you were innocent but somebody poisoned your mind.

“There are people who try to groom young people into their ideology, and I want them to recognise where these people operate, the tricks they use, the things they say and how they can recognise themselves or others in the process of being radicalised and how to get out.”

Martyn Hett
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Martyn Hett

She also supports the initiative to show the Netflix drama Adolescence in schools: “I think it’s absolutely important that young people see that programme and they learn more about it. It’s a good thing and I’m hoping they’re taking it further.”

There will be a debate – certainly – about the financial impact the legislation will have on venues, but the legislation has been welcomed by safety campaigners.

Emma Kay, co-founder of personal safety app WalkSafe which geo-fences events and stadiums, said: “The passing of Martyn’s Law is hugely progressive move that will keep young people safe on nights out.

“Our research has shown that 63% of women prefer to visit venues with safety initiatives in place. People want safer experiences and to know their friends and loved ones arrive home safely.”

Read more:
Martyn’s Law: Terrorism response bill named after Manchester Arena bombing victim becomes law

When I sat down with Figen, I asked her how Martyn would feel today.

“Knowing Martyn, the party animal he was, he’d throw the biggest party ever,” she said.

“He was full of life and lived life not just at 100 miles an hour, but 200 miles an hour.

“You would definitely know when he came through the door, and he had an incredible ability to make everyone feel that they are the most important person in that moment in his life. And I really miss that.”

You can watch Sophy Ridge’s full interview with Figen Murray on the Politics Hub at 1900 on Sky News.

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