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Bitcoins worth $300K recovered from an old zip file

(BUSINESS FINANCE) Losing the password to your Bitcoin wallet often means potentially losing your cryptocurrency. But this didn’t stop a Russian investor from getting his money back.

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Stack of bitcoins

At some point in our life, we’ve all lost or misplaced something. I’ve misplaced my phone and keys more times than I can count. They always have a way of finding themselves between the couch cushions. But have you ever lost the private keys to access your $300,000 worth of bitcoins? Neither have I. However, this is exactly what happened to a very unlucky man.

Last month, Defcon’s 28th annual event took place. The event is the most influential security hacking conference held in Las Vegas. Michael Stay, a reverse engineer and current CTO for Pyrofex Corp, shared the story with attendees. He started his presentation by saying, “And today I’m gonna to tell you about how we recovered several hundred thousand dollars worth of Bitcoin from an encrypted zip file.”

About twenty years ago, Stay published a cryptanalysis paper detailing how to break into encrypted zip files. This paper led an anonymous Russian investor to find Stay and send him a surprising message on LinkedIn. “So in October of last year, a guy contacts me out of the blue and says, “I read your paper on known plaintext attacks, and I’ve got this password that I’ve forgotten. Is there anything you can do to help?”” Stay said.

In 2016, the investor purchased $10,000 worth of bitcoins and placed the private keys in an encrypted zip file. After the Bitcoin boom, the purchase proved to be a great investment. There was just one slight problem: He forgot the password and had no way of accessing the Bitcoins.

After stumbling on Stay’s old cryptanalysis paper, he hoped Stay would help him break into the zip file and recover the lost keys. When Stay looked into the case, he soon realized this would be a difficult task. The attack he had written years ago needed five files to break into the zip file. This man only had two files in the archive.

With only two files, this would take Stay a lot of time and money to find a solution to the problem. After doing some calculations, he told the guy it would cost him around $100,000 to attempt to recover the keys. He simply couldn’t use regular “off-the-shelf software” to get this done.

The man agreed without hesitation. Stay’s mind was blown away with his response. “I knew he probably had several hundred thousand dollars of Bitcoin in this thing,” he said. The pressure was on!

To break-in, Stay enlisted his business partner, Nash Foster. Foster helped adapt his CPU based attacks to run on GPUs, and they rented a GPU farm. “Our initial expectation was we would do engineering for a couple of months, and then the attack would have to run for several months to succeed,” Foster told WIRED.

Four months after the initial LinkedIn message, they began the attack. “We had tried it in all our test archives that we’d created. It worked fine,” Stay said. They were hopeful. “Ten days passed, and it didn’t find a key. And we were distraught, pulling our hair out. What have we done wrong?” Stay asked himself.

After combing through the data, the investor, who is a programmer himself, discovered a bug in the GPU. Once Stay and Foster fixed the bug, they were able to restart their attack. Within a day and a half, they found the three keys they needed to decrypt the archive.

In the end, the improvements made to Stay’s old attack made a significant difference. Instead of the $100,000 and year of processing time that Stay estimated it would take, they were able to do it for less than $10,000 in two weeks of processing time.

“Our client was very pleased and gave us a big bonus! And that’s how we recovered his Bitcoin folder,” Stay said.

According to a 2017 research by analysis company, Chainanalysis, nearly 400 million Bitcoins are already lost. Although Bitcoins have no physical form, they can still be lost. Forgotten private keys and passwords, and discarded and lost devices account for this high number.

The Russian investor wasn’t so unlucky after all!

Veronica Garcia has a Bachelor of Journalism and Bachelor of Science in Radio/TV/Film from The University of Texas at Austin. When she’s not writing, she’s in the kitchen trying to attempt every Nailed It! dessert, or on the hunt trying to find the latest Funko Pop! to add to her collection.

Business Finance

Succession planning: Your options when not allocating to dependents

(ENTREPRENEUR) We’ve all heard the phrase “You can’t take it with you,” but succession planning provides peace-of-mind when leaving behind personal assets.

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Two silhouettes of people looking out over the sunset

Succession planning is a forward-looking strategy to ensure the “next in line” is prepped for what is to come. Within an organization, executives or management create a blueprint in hopes of a seamless transition of operations to “partners, future generations, or successor owners,” as Patrick Hicks, the Head of Legal at Trust & Will, states.

Succession planning can be useful in both professional and personal environments, including handing off entrepreneurial businesses or assets of any value. It’s important to create an Estate Plan for whom you plan to replace you in regard to property ownership.

Hicks says that, “Property rights are the cornerstone of modern society.” Property rights include the authority to determine how a resource is used or disposed of after death. This can include giving in a neighbor, a charity, or the most common choice, your family.

“Giving it all to family is typical but giving it all to non-relatives gets second looks. An estate plan is the manifestation of your wishes. It doesn’t matter if anyone else approves.”

It can come as a shock to hear if your assets are undesired by family- or even worse- if it comes as a surprise to them after a loved one’s death. Some choose not to communicate succession plans during one’s lifetime as it could damage familial relationships, but on the other hand, it could also provide a smoother transition. If an heir does not wish to take on the property, there is a chance for contest or litigation that could reduce the benefits of having a succession plan in the first place.

Another scenario is if your dependents do want a hand in property assets after death, but your wishes are to relinquish it elsewhere. Hicks says, “Typically, children do not have a right to claim their inheritance, unless some special rule applies.”

An example is if you leave behind a minor child or surviving spouse, where in that case, they may be entitled to receive support. This could include at least of share of property if no estate plan was in place. However, the necessary support can also be provided by the dearly departed through life insurance or another means.

“When it comes to estate planning, there are societal norms and bounds,” Hicks says, but ultimately, no matter the wishes, having a succession plan can provide peace-of-mind when thinking of the future.

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Business Finance

Tips on setting a more accurate freelance rate

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freelance rates

Setting a freelance rate can be difficult given that any industry has conflicting norms regarding an appropriate billing amount – a fact made more difficult by about a billion other factors such as experience, location, and so on. Whether you prefer to determine your rate the long-form way or you just want a calculator to point you in the correct direction, here are some tips for figuring out how much you should be charging.

Jennifer Bourn, business guru and freelancer extraordinaire, eschews the general “start with the salary you want and work backward” approach. Under this model, you would theoretically determine the amount of money you want in a year, divide that number by the number of hours you plan on working in a year, and charge whatever the quotient is (for example, $100,000 divided by 2080–which is 40 hours per week times 52 weeks in a year–is roughly $50 per hour).

The problem with this model, Bourn posits, is that it doesn’t actually get you what you want to earn. Once you take into account things like your overhead spending, vacation time, insurance, profit margin goals, and actual billable time versus the time you need to do administrative things, you’re looking at a substantially smaller figure at the end of the year.

Bourn’s solution is to start with the salary you want, add all of your expenses, multiply that result by your desired profit margin (e.g., 1.10 for a margin of 10 percent), and then divide by a realistic look at your billable hours for the year–not just the standard 2080 work days in a year (which is already problematic due to the aforementioned vacation time and potential for sick leave).

If all of that sounds like way too much effort, there are a myriad of rate calculators that you could use instead. Each of our following picks has a variety of applications:

  1. Clockify is a simple, straightforward calculator that looks at your industry, location, and experience level to generate an average hourly figure.
  2. Nation 1099starts with your desired salary and then gives you an hourly rate and a daily rate based on many of the factors espoused by Bourn.
  3. Your Rate asks for your desired annual income, your number of weekly billable hours, and your anticipated time off per year to come up with a set of rough figures for weekly, daily, and hourly rates.
  4. Freelance Rate Calculator is a Google Sheets template that takes into account your goals, expenses, billable hours, and more.
  5. All Freelance Writing is a more intensive calculator with an advanced option to determine all of your costs, goals, billable hours, time off, and so on, making it a pleasant option somewhere between Bourn’s long-form calculations and something like Clockify.

You should test your salary calculations in a variety of spaces if you have the time. This will ensure that you end up with a solid, well-corroborated result that you can quote to clients rather than having to fall back on one website’s opinion. Whichever option you choose, though, remember that you deserve to be paid what you’re worth–not just what your services are worth.

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Business Finance

How should freelancers be saving for retirement (is it even possible)?

(FINANCE) Adulting is hard, but retirement looms no matter your age – here are some ways to start squirreling money away so it’s less stressful later.

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retirement savings

Freelancing is a tenuous approach to employment, made all the more so by a profound lack of amenities usually offered by more stable arrangements – chief among which is a retirement fund. It can feel impossible, especially when your business suffers amidst a pandemic, so some of what follows can be ignored until the ship isn’t sinking, but don’t wait a minute longer than that – deal?

So there are several schools of thought regarding the best way to start saving and where you should put your money, but the bottom line is that, if you’re a freelancer, you should be allocating your own retirement funds. Here are some ways to do just that.

Before you can even get into the weeds of how to invest in retirement, you should have a parachute in case things go sideways. My Bank Tracker suggests starting with an emergency fund of $1,000, adding to it as you can until you have anywhere from 3 to 12 months of expenses covered.

This serves two purposes: ensuring that you’ll have the luxury of time if you need to perform an abrupt job hunt, and establishing how much you can safely put away each month without jeopardizing your business or standard of living (within reason).

Having a relatively large sum of money on hand for emergencies is always good, and if you never have to use it for the purpose for which you set it aside, it can supplement your retirement whenever you decide it’s time to cash in.

My Bank Tracker also suggests storing your emergency fund using a “high-yield” bank account, such as an online savings account, rather than sticking with traditional, low-interest savings options.

You also need to plan for taxes, which in addition to whatever your tax bracket percentage is, includes allocating 15 percent of your income to pay Social Security and Medicare. This means that you’re probably putting aside a pretty hefty sum (at least 30%) each month.

Once you’ve established your emergency fund and planned for taxes, you should have a general idea of what your wiggle room looks like vis-a-vis saving for retirement.

The actual saving part of retirement entails investment in a retirement account such as an IRA, Roth IRA, a 401(k), or a pension plan (referred to as a “defined benefit plan”).

Each of these account types has benefits and drawbacks depending on your situation.

  • A Roth IRA will allow you to contribute a certain amount each year, and you can usually set up an account quickly from a variety of online locations. The money that goes into a Roth IRA is post-tax, meaning you don’t have to pay tax on the retirement funds you pull out. Your income, however, can disqualify you from investing – if you earn above a certain threshold ($140,000 in 2021), you won’t be able to use a Roth IRA.
  • Other IRA options exist as well, each with a cap on how much you can contribute per year and varying tax requirements. For example, a traditional IRA account requires you to pay taxes when you withdraw the money, and there’s an upper limit on how much you can contribute.
  • A SEP IRA is similar, but the upper limit on investment is substantially higher – and you need to be self-employed (or an employer) to have one.

Nerd Wallet also points out that a 401(k) is a reasonable option for self-employed people who don’t employ anyone else, especially if you plan on saving “a lot in some years — say, when business is flush — and less in others.” 401(k) accounts allow you to put up to a certain amount ($58,000 in 2021) in each year pre-tax, and you pay taxes on withdrawals whenever you start pulling out money.

More eccentric retirement options exist as well. Taxable Brokerage Accounts let you invest in stocks and securities through a brokerage, and you’re able to use the money whenever you please – but you’ll have to pay taxes on your gains each year, which can become expensive in the long run.

And defined benefit plans are expensive and entail high fees, but they allow you to set up a pension with high investment opportunities as opposed to some of the lower-investment options.

Whichever option (or options – you can always invest in multiple accounts) you choose, make sure you’re saving for retirement in some capacity. And remember that these accounts represent exponential growth, meaning that the sooner you start saving, the better off you’ll be when you begin your retirement journey.

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