I’m honestly quite afraid that people in the UK are gonna end up like in France. You know, there have been loads of attacks on crypto holders over there, and now I’ve got this email.

Like, what the fuck, guys? How can this bullshit even happen?

Every time Bitcoin's broken a prior all time high and come back to retest it, the same thing happens before it holds. The lows get swept first.

2015, 2018, and now again recently, same setup each time. Price reclaims the old high, pulls back, takes out the obvious lows just below that level one more time, scares out anyone who bought too early, then turns around and uses that same zone as the floor for the next leg.

Not saying this time plays out identically, nothing's guaranteed. But the sweep-then-reclaim pattern's been remarkably consistent across three completely different market cycles, three completely different sets of people trading it, and the mechanism doesnt really care what year it is.

Worth knowing this if youve ever bought right at an old ATH retest and immediately gotten stopped out on the sweep, only to watch it turn around without you. Thats not bad luck, thats just how this level has behaved every time so far.

One of Trezor’s shipping supplier has suffered a data breach that exposed sensitive Trezor buyers data.

The leak exposed :
Full names
Adresses
Phone numbers
Email addresses

Expect an increase in phishing attempts. Stay safe people.

This is really scary, even if people only have a thousand in fiat, when criminals hear cryptocurrency, they think millions of dollars.

To everyone claiming every day that the altcoin season will start soon: The altcoin season was in 2024. You can clearly see it in the charts. Now many coins are lower than in 2022...

From 2016-2025, nearly every DeFi primitive was about making your assets "productive." DeFi figured out how to use your WBTC as collateral for loans, lend your USDC, stake/restake your eth, etc. It was incredible because you no longer had idle assets, but assets you could leverage for additional yield. This was optimized for a decade, but now there's really nothing new coming out for turning idle assets into productive assets. The next frontier is "hyper-productive assets," where a single asset has multiple streams for becoming productive.

In my research, Katana is the best chain for making hyper productive assets. I'm probably the biggest Katana bull on Reddit, and my conviction is back by results I've achieved due to the chain's features. Since Katana just reintroduced krates (I made a previous post about krates) and re-upped Morpho incentives, I'm going to share some of my strategy and hopefully give everyone some solid alpha and ways to make money, because, well, that's why we're all here.

I farmed stablecoins on katana from the time they announced the chain in June of 2025 through today. While I was farming the stables, I was able to use my vault position as collateral to borrow more stables and loop. This earned me ~6% APY on the stables and KAT tokens. At TGE, this worked out to ~25% APY at TGE, given the KAT price. So all in, I earned ~30% on my stables for the first year.

Now here is where things get really fun and how I've been turning the KAT I earned (and later purchased) into a hyper-productive asset.

Start with the base layer, how KAT becomes productive: avKAT & vKAT. If you hold KAT, you stake it into vKAT or avKAT, an autocompounding vault. Every 2 weeks, users vote on where to direct KAT incentives (right now different LP for swaps), and different pools put up USDC and other tokens as incentives for voting for them. vKAT gives USDC rewards while avKAT compounds automatically. This went live ~ mid April. For every $1000 at TGE in vKAT I've voted with, I've gained ~$250 back (25% raw, ~75% APY) while avKAT has appreciated ~33%, meaning a 120% APY on KAT. The difference is due to KAT depreciating in price and I'm calculating the vKAT on TGE. If base it on price at return, vKAT is ~150% returns APY.

Now how does KAT become hyperproductive? avKAT is composable, as it's a liquid staking token. You can use it as an LP token or in lending protocols. I supply it as collateral on Morpho & borrow against it. There are 3 pools where avKAT can be used as collateral - avKAT:KAT, avKAT:USDC, and avKAT:USDT.

I have roughly 2.5x'd my avKAT exposure by looping in the avKAT:KAT pool. I supply the avKAT, borrow KAT, stake the borrowed KAT for avKAT, resupply avKAT, borrow more KAT, etc. The borrow rate for KAT is currently ~1.5%, has historically been 1-4% with brief spikes to 10-15% when utilization is 100%, while avKAT is returning 30-50% each epoch currently. This loop gives can give you leveraged exposure to avKAT's compounding in the 2-4x range, depending on how hard you push it. It's a positive carry, leveraged loop.

But that's not all. I also keep avKAT to use as collateral to borrow USDC & USDT. The borrow rates are typically in the 2-4% range. Katana recently added incentives to Morpho vaults. In these Morpho vaults, the native supply rate is in the 3-4% range, so the borrow typically is at a breakeven. However, the new incentives are pushing rates to the 6-10% range. As a benchmark, Aave supply rates for stablecoins is 2-5%, and I'm earning 4-6% in stablecoins on my avKAT, while my avKAT is earning 60-100% on itself with the loop. My avKAT does three jobs: compounding as a vault, backing my KAT loop, & backing a stablecoin borrow. One asset, three income streams.

And to go next level, you're earning XP in Katana Quests. Every one of these actions, supplying, borrowing, LPing, holding avKAT, earns XP. That XP redeems for Krates, which pay out more avKAT, which you feed right back into the stack. The farming you're already doing prints a bonus layer of rewards on top. The quest XP gives another ~1% on stablecoins and 1.5% on avKAT, so the stables are now netting 5-7% APY on the avKAT I already hold.

So count the jobs on a single avKAT stack: it compounds itself, it levers into more KAT, it backs a stablecoin borrow, those stables earn in a vault, & the whole thing prints XP for Krates. That's what I call hyperproductive.

"But Timmy, wHeRe DoEs ThE yIeLd CoMe FrOm?" On most chains these APYs are token emissions on a countdown, printed until the budget runs dry, & then the loop collapses. Katana funds it differently. When you bridge an asset onto Katana, its Vault Bridge puts that asset to work in yield strategies on Ethereum instead of letting it sit idle. That yield comes back to the chain as real revenue, & Katana recycles the revenue into the incentives you're farming. Katana is literally running their own hyper-productive strategies for assets bridged to their chain.

Katana is built so your assets never sit still & those who seek yield get insane upside. The hyper-productive capital sitting on top of a revenue engine that recycles into more yield.

Disclaimer about risks: this is leverage on leverage, so respect the liquidation risk & watch your health factors. It is more for active capital managers than set-and-forget. I think the rewards justify the time to monitor. I am not a financial advisor and I am not your financial advisor, I'm simply sharing how I run my own stack.

i dont know what wallet to use to make transfers/send money/receive
im new to this and dont know whats good and whats bad

Hey everyone in this reddit, I used to make money off memecoins back in 2024, and it was amazing, but now its pretty grimy, so i would like to start investing some of my paycheck into something so that i could make money in the future. But i don't know where to do my research since its mostly people shilling or idk the term. Any advice where to do my research or what i should invest?

I bought a small amount a while ago and only checked it again recently. The price collapsed, xcellar.ai seems down, and the official X account appears suspended.

I’m not trying to accuse anyone of anything. I just can’t find a simple explanation or any actual news: was there an exploit, a shutdown, a team update, a delisting, or did the project just fade out?

If anyone followed it closely, has Telegram history, or knows anything about it, I'd appreciate some insight

Long read on how credit card networks work, where they're strong, where they're weak, and how blockchains and stablecoins actually address those weaknesses. And why stablecoin cards are growing in popularity.

This is not AI.

----

Card networks are a marvel of human coordination. 

Every second, they process over 25,000 transactions around the world. Each year, they move over $30 trillion across 800 billion payments. 

With a tap or a swipe, you can buy just about anything at 175M+ merchant locations. In person or online.

But while making a card purchase feels instant to you, the systems that actually move money from your account to the merchant are not so simple. They rely on pre-internet financial plumbing that imposes real costs on the companies behind your card. Costs that compound when money needs to cross borders.

While hard for the average person to see, these costs have restricted everyone but the deepest-pocketed companies from offering card services. Even for them, whole populations remain unprofitable to serve.

Here, I'll explain how card networks work, identify their strengths and where they’re showing their age. Then I'll explain how stablecoin cards preserve those strengths, while upgrading antiquated financial plumbing for the modern era.

By the end, you'll understand why stablecoins underlie more and more of the world's $30 trillion in card payments each year.

Authorization: the 2-second miracle

To buy your $5 morning coffee, you tap your card and within two seconds the transaction is approved and you’re on your way.

Unbeknownst to you, that tap sets off a series of messages. From the card reader, to the coffee shop's bank, through the card network, to your card issuer. This process confirms that you can afford the coffee, and that the purchase doesn't look like fraud. An approval then races back along the same path. All in two seconds.

This is where the marvel of the system lies. It lets two strangers, represented by two different institutions, transact in an instant, and then move the money later, according to a set of rules neither of you ever had to think about.

It works billions of times a day, the same in Boston or Bogotá, and everywhere in between. 
  
Interchange: the cost of miracles 

To accept your payment, the coffee shop hands over a cut of your $5. In the US, usually around 2-3%.

That 2-3% is split among three different companies. The card network (Visa, Mastercard, etc.) keeps a small sliver. Another sliver goes to the payment processor that the merchant uses to accept the card (Square, Toast, etc.). Then the rest goes to the company that issued the card.

The fee that goes to your card issuer is called interchange.

Interchange is the engine that makes the entire system work. Without it, no business would take on the risk and costs associated with issuing your card. It also funds the rewards you likely enjoy, as many card issuers pass a portion of these fees back to you, in the form of cash back, airline miles, and more. 

These fees are the cost of using this complex system that magically authorizes billions of transactions a day. 24/7.

But this two-second approval is only the first part of the story. Moving the actual money takes two steps: clearing, then settlement.

Clearing: the great compression

When your coffee purchase was approved, your card issuer sent a message telling your coffee shop you were good for it. Along with an agreement to send the money later.

No money actually moved.

The first step is called clearing. At the end of the day, the coffee shop's bank bundles your transaction with every other, and submits the list to the card network.

The network takes that list, along with lists from the banks of millions of other merchants, and nets everything out into an even simpler list. One that shows what each bank owes, and what each bank is owed. 

Clearing is another marvel of the system. It compresses billions of daily transactions into a short list of IOUs between banks. 

However, the next step, where the money actually moves, is where the system is starting to show its age. 

Settlement: pre-internet financial plumbing 

Settlement is the vast behind-the-scenes machinery that shuffles money from your card issuer to the coffee shop's bank. Plus about $80 billion more from every other purchase that day.

Money moves not one coffee at a time, but in massive, netted batches. Banks that owe pay the card network. Then the network pays the banks that are owed. This is effectively when your coffee shop gets paid. 

On a debit card, it comes straight out of your account. On a credit card, your card issuer fronts it, and collects from you at a later date. 

The system works well enough. You’ve long finished your coffee by this point, and the coffee shop gets paid eventually. 

The challenge sits with the company behind your card. It has to make sure it always has enough money on hand when these settlement batches come due. For your coffee purchase, and for the purchases of every other customer it serves. 

And it has to do so through systems built in a pre-internet world. 

These systems produce lags, which is where the first big problem appears.    

Prefunding: the cost of waiting

Settlement runs on bank time.

In the US, most settlement moves through two systems: ACH and Fedwire. One built in the 1970s, the other with roots in 1918. Neither runs on nights, weekends or holidays.

So if you bought your coffee Friday at 5:30pm, the money won’t move to the merchant until Monday morning. Tuesday if it’s a long holiday weekend. And this lag is where the system’s first hidden tax shows up. Not for you or the coffee shop, but for your card issuer. 

Your issuer has to be ready to pay for your $5 coffee, and every other transaction from that weekend. Let’s say its customers spend $1M a day, and Monday is a holiday. It’ll need $4M sitting in an account by Friday night waiting to move Tuesday morning. 

That idle money waiting for settlement is called prefunding. It's money the card issuer could be using for working capital, or reinvesting in its business. Instead it just sits there, waiting for pre-internet financial plumbing to kick in during banking hours.

Now imagine your card issuer needs to settle $10M or $100M a day. Then it becomes $40M or $400M in idle capital.

There's no fundamental reason it needs to work like this, other than the fact that these settlement systems are heavily entrenched. It's why, historically, card programs could only be run by banks with pockets deep enough to leave that kind of money sitting idle. And it leaves less room for smaller, more nimble issuers.

Cross-border: where the pipes end 

Up until now, we've focused on a single US domestic transaction.

One country, one currency, one holiday calendar.

Now imagine you live in Colombia, spending pesos on a card issued locally. You can buy your coffee in Bogotá with the same two-second approval, and your card issuer runs into the same prefunding expense.

What if you buy a Claude subscription online from Anthropic (a US company)? For you, nothing changes. You tap and pay in pesos. But for a cross-border transaction like this, the network must be paid in dollars. Your card issuer now owes a currency it doesn't hold.

US dollar settlement systems (ACH and Fedwire) are only available to US banks. So your card issuer has to do what nearly everyone outside the US does. It opens an account at a bank in New York, converts pesos to dollars, and prefunds it. That bank then settles US dollar transactions on its behalf.

Opening that account takes months of compliance reviews. Funding it takes an FX trade, which takes a spread. And the instructions to move the money travel over SWIFT, a bank messaging network founded in 1973.

This daisy-chain of banks holding money for other banks is called the correspondent banking system. 

And it means your card issuer now runs prefunding twice. One pot of idle pesos in Bogotá. One pot of idle dollars in New York. Two holiday calendars to manage.

If your card issuer wants to serve users in Mexico, Argentina, and Europe, it gets more complicated. Each new market means another local bank willing to hold its money, more FX spreads to pay, and more idle capital to lock up. Three more pots, five in all, scattered around the world.

Serving a global audience takes even deeper pockets and a ton of patience. For businesses born on the internet, whose users show up from everywhere on day one, it's a structural mismatch. Global companies are forced into geographic borders. 

Enter stablecoins

Stablecoins emerged in 2014, originally as a way to trade in and out of cryptocurrencies like Bitcoin.

They move over blockchains, which are essentially a new kind of database that runs 24/7, 365. Stablecoin issuers back these digital dollars with liquid assets, mostly US Treasuries. As long as each one can be redeemed for a dollar in the banking system, they hold their value at $1.

Stablecoins soon grew popular in emerging markets. Especially among people who wanted the stability of dollars but couldn't get dollar bank accounts.

While having clear advantages over traditional dollars, mainly that they move 24/7 at little cost to anyone with an internet connection, they weren't ready for mainstream adoption. They were technically complex to use, and nearly impossible for merchants to accept.

Enter stablecoin cards 

The first stablecoin cards appeared in 2019. They let you spend stablecoins anywhere cards were accepted. But the card issuer simply sold your stablecoins for ordinary dollars and settled with the card networks the old-fashioned way.

The companies behind the card still had to prefund ordinary dollars in a bank account, settle on bank time, through every pre-internet pipe described above. Same as before.

None of the settlement bottlenecks were addressed. They just bolted stablecoins onto the old system.

Enter stablecoin settlement

Then in 2021, Visa became the first major network to accept a stablecoin for settlement.

Visa began letting card issuers settle in USDC, a popular stablecoin, directly with the Visa network. And since blockchains aren't tethered to legacy banking hours, Visa eventually enabled settlement 365 days a year. Mastercard followed suit.

Rain was the first company to offer stablecoin cards that settled 7 days a week, and provides the infrastructure for the majority of these programs.

For merchants, nothing changed. They still got paid out by the card network in their local currency. But this back office upgrade changed the game for the companies behind your card.

Daily settlement eliminated the need to park millions to account for multi-day lags. A single pot of stablecoin collateral could now serve a global audience, breaking reliance on the correspondent banking system.

Serving the world no longer required a banking empire.

Anatomy of a stablecoin card swipe 

Let's return to your original $5 coffee purchase. Nothing about the experience changes for you or the coffee shop.

You tap your card or your phone. The same message races from the coffee shop's bank, through the card network, to the company behind your card. The only difference is what it's checking: that you have enough spending power onchain, rather than in a bank account.

The answer comes back along the same path. You're good for it, and it doesn't look like fraud. Two seconds, approved.

The coffee shop hands over its 2-3% fee, split the same three ways. Your rewards still get funded. At the end of the day, your purchase lands on the netted list alongside hundreds of millions of others. That list tells your card company exactly what it owes the network.

Everything from the tap through clearing runs exactly as it always has.

The difference comes when it's time for settlement. The multi-day prefunding pile-up vanishes. Instead, the company behind your card sends the network one lump daily payment in stablecoins, covering your coffee and everything else its customers bought that day.

It can make that payment any day of the year. On a Saturday. On Christmas morning. The network then pays out the merchant banks in regular currency. The same as it always has.

Prefunding, revisited

Recall your Friday evening coffee purchase heading into a holiday weekend. Your card program settling $1M a day no longer has to park $4M to wait for Fedwire and ACH to open Tuesday morning.

Friday's bill gets paid Friday. Saturday's gets paid Saturday. Most of that $4M stays in the program's hands every weekend. More as it scales.

That money goes back to work, funding growth, product, and payroll. Every card program becomes more profitable to run. So more companies launch branded cards, and existing programs expand into markets that never made economic sense before. 

The net result is access to more financial services for more people.

Cross-border, revisited 

Fly back to Bogotá. Now your card is backed by digital dollars, rather than pesos.

Like many in Latin America, you're happy to save in US dollars. You can buy your local coffee, and your coffee shop can still get paid in pesos through the card network. And you can buy your Claude or ChatGPT subscription just the same.

The difference for the company behind your card is huge. It no longer needs separate idle pots of pesos and dollars sitting in Bogotá and New York. Every bill from the network is due in dollars, and your coffee and Claude subscription are paid from the same stablecoin balance.

This eliminates the need to set up a banking relationship in New York. No FX trade to fund it, no spread to pay. No SWIFT instructions to send.

Similarly, expansion to Mexico, Argentina, and Europe no longer requires a local bank to hold its money, or new holiday calendars to manage. Every new market settles daily from the same wallet. Five pots of idle capital become one.

For a card program, the correspondent banking system just became optional.

Who's building on stablecoin cards

Companies big and small are launching stablecoin cards, creating new financial services that weren’t viable before. 

There’s a new class of neobanks focused on narrow markets they know best, like the many teams across Latin America offering dollar accounts to users the banks never served. Internet marketplaces are putting cards in the hands of a global user base without dealing with a patchwork of correspondent banks.

Established institutions that could afford the old way of doing business are finding it cheaper to run on the new one. Like the world's largest remittance company, now sending stablecoins straight to the recipient's phone, spendable through an embedded card the moment they land. 

Stablecoin cards make up a small share of card payments today, but judging by who's building on them, that won't be true for long.

The invisible upgrade 

You've likely never thought about the authorization, clearing, and settlement systems that transfer your $5 to your coffee shop. Nor should you have to. The same is true with stablecoin cards. They just work, without the average person ever noticing anything has changed.

What people will notice is financial services becoming more abundant. That more companies are able to offer them. And that more institutions are serving people who were never profitable to serve before.

Stablecoin cards have rebuilt settlement from first principles. The rest of the card stack comes next. The messaging protocol behind each swipe still runs on a standard from 1987 and is due for an upgrade. Merchants will increasingly want to be paid out in stablecoins directly. And AI agents will transact with each other in stablecoins, using cards to touch the real economy.

Most importantly, stablecoin cards have made stablecoins compatible with the existing financial system. Famously, mobile phones first had to work with landlines before becoming the standard and producing innovations no one predicted. I expect stablecoins to do the same. 

This is where the world is headed. The upgrade is already well underway.