Several firmware versions released for a popular brand of routers have been found to contain an undocumented backdoor that can allow anyone full access to the hardware.
The brand in question is Tenda, a company that manufactures network equipment such as routers, switches, access points, and video cameras. It’s a popular brand that sells hardware via the usual channels, such as Amazon.
Put simply, the backdoor is an admin password that’s been baked into the firmware that allows anyone who knows it to bypass access control security (username and password) and access the internal settings of the router.
By accessing a router’s administration panel, an attacker would be able to carry out a number of tasks that you might not want a third party to be able to do, from running internal network scans to find all the devices on the network to grabbing the Wi-Fi passcodes, setting up certain ports and web traffic to be forwarded to another destination, and disabling security features.
While CERT has not reported what the username and password backdoor is, I was able to find it pretty easily, and since I have some Tenda hardware here, I was able to confirm that the backdoor works.
Given the ease of the hack, the fact that all the details are out there, and the popularity of Tenda hardware, I expect this hack to be exploited by hackers.
Firmware versions affected
The firmware versions that are affected are:
US_FH1201V1.0BR_V1.2.0.14(408)_EN_TD
US_W15EV1.0br_V15.11.0.5(1068_1567_841)_EN_TDE
US_AC10V1.0re_V15.03.06.46_multi_TDE01
US_AC5V1.0RTL_V15.03.06.48_multi_TDE01
US_AC6V2.0RTL_V15.03.06.51_multi_T
It’s not known if this backdoor was added maliciously or as some sort of way for tech support to access hardware where the user has lost the password.
If this vulnerability required hands-on access to the router, the scope of attack would be quite limited. Unfortunately, this can be exploited remotely over the internet.
I thought that I might be able to install an open-source firmware on the router, like DD-WRT, but because of the custom chipsets that Tenda uses, there aren’t any available.
ZDNET has reached out to Tenda for comment and a possible timeline for a patch, but as of the time of writing, the company has not replied. CERT reports that it, too, “were unable to reach the vendor to coordinate this vulnerability.”
There’s a special kind of panic that hits at 11 p.m. on a Tuesday when you Google “can someone sue me personally for my freelance business” and the answer is, technically, yes. I know this because I lived it. For fourteen months, I ran a growing consulting side hustle- invoices, contracts, the whole act- under exactly zero legal structure. I didn’t choose to be a sole proprietor. I just never chose to be anything else, which, it turns out, is the same thing.
The wake-up call came from a client’s offhand comment about “your LLC,” followed by my very convincing silence. That night I fell into a research hole so deep I emerged the next morning having read seventeen tabs on liability shields, self-employment tax, and something called “piercing the corporate veil” that sounded like a phrase from a divorce lawyer’s memoir. So: is a sole proprietorship secretly a ticking time bomb? Is an LLC the adult, responsible choice, or just expensive paperwork with better branding? Let’s actually work through it.
What Is a Sole Proprietorship, Really?
Here’s the part nobody tells you clearly: if you’re earning money from your own business activity and haven’t filed anything with your state, you’re already a sole proprietor. There’s no form to submit, no fee to pay, no ceremony. You and the business are, legally, the same person. That’s the whole structure.
The upside is real. It’s the fastest, cheapest way to start working for yourself — no filing fee, no separate tax return, no annual report to remember. You just start invoicing. The downside is baked into that same simplicity: there’s no legal wall between your business and your personal life. If the business owes money or gets sued, the business is you, so your savings account, your car, and potentially your house are all fair game.
What Does an LLC Actually Protect You From?
A Limited Liability Company creates a separate legal entity- one that can own things, owe things, and get sued, largely independent of you personally. That separation is the entire point of forming one.
It’s worth being honest about the limits, too. An LLC won’t protect you if you personally guarantee a business loan, if you commingle business and personal funds, or if you’re personally negligent — say, you’re a contractor and you cause an injury through your own carelessness. Courts can “pierce the corporate veil” and go after your personal assets anyway if you treat the LLC as a legal fiction rather than a real, separately run entity. The protection is genuine, but it’s not a force field; it’s a structure you have to maintain.
Which One Actually Costs More to Start?
This is where a lot of the fear around LLCs turns out to be overblown, and a lot of the assumed simplicity of sole proprietorships turns out to be incomplete.
Sole Proprietorship
LLC
Setup paperwork
None required (unless operating under a different name)
Articles of Organization filed with your state
State filing fee
$0
$35–$500 depending on state (national average is roughly $130)
Ongoing state fees
Typically none
Many states require an annual report; fees range from $0 to $800+ (California’s franchise tax is the notable outlier)
Separate business bank account
Optional
Strongly recommended to preserve liability protection
EIN required
Only if hiring employees
Recommended even for single-member LLCs, to avoid using your SSN
A sole proprietorship is still the cheaper entry point in dollar terms. But “cheaper to start” and “cheaper overall” aren’t the same question — it depends what a lawsuit, a bad debt, or a messy tax season would actually cost you.
How Do Taxes Actually Differ?
This is the part I got wrong for months, assuming an LLC meant a whole new tax regime. It doesn’t, automatically. By default, both a sole proprietorship and a single-member LLC are taxed identically: profits and losses pass through to your personal tax return, and you pay self-employment tax (15.3%, covering Social Security and Medicare) on your net earnings.
The actual tax advantage of an LLC isn’t automatic — it’s optional. A single-member LLC can elect to be taxed as an S-corporation once profits reach a meaningful level, which can reduce self-employment tax by letting you pay yourself a “reasonable salary” and take remaining profit as a distribution not subject to that 15.3%.
That election involves added complexity — payroll processing, additional filings — so it’s rarely worth it for a business bringing in a few thousand dollars a year. It becomes worth asking about once net profit is consistently well into five figures.
Does an LLC Actually Make You Look More Credible?
Here’s a question I didn’t expect to matter as much as it did: does “LLC” after your business name change how people treat you? Anecdotally, yes. Some clients, vendors, and lenders treat an LLC as a signal of seriousness — rightly or not — the way a business bank account or a proper invoice template does. It’s not a guarantee of better contracts, but it removes a small, avoidable hesitation from a prospective client’s mind.
It also matters for banking and financing. Business lenders and some payment processors are more comfortable extending credit to a registered entity with its own EIN and bank account than to an individual operating under their own name.
Do You Still Have to Report “Beneficial Ownership” in 2026?
If you researched this a year or two ago, you may still be carrying around outdated fear about the Corporate Transparency Act’s beneficial ownership information (BOI) reporting rule — the one that threatened steep penalties for LLC owners who didn’t file. Here’s the current state of play: in March 2025, FinCEN issued an interim final rule that removed the BOI reporting requirement for domestic U.S. companies and U.S. persons entirely. As of today, that requirement applies only to foreign entities registered to do business in the U.S. — not to a typical American-owned single-member LLC.
That said, the underlying law hasn’t been repealed, courts have upheld its constitutionality, and FinCEN’s final rule is still pending in 2026, meaning the rule could tighten again with limited notice. A small number of states have also introduced their own versions; New York’s LLC Transparency Act took effect January 1, 2026, but after a late amendment, it applies only to foreign LLCs doing business in New York, not typical in-state LLCs. The short version for most small business owners forming a domestic LLC in their home state: this isn’t currently a filing you need to worry about, but it’s worth a five-minute check-in with a professional if your situation involves foreign ownership or multiple states.
So, Which One Should You Actually Choose?
There isn’t a universally correct answer, but there is a useful set of questions. How much personal risk does your work actually carry — a freelance copywriter has a different exposure profile than someone renovating properties or handling clients’ money. How much profit are you actually generating, since that determines whether the tax flexibility of an LLC is relevant yet. And how much administrative overhead are you willing to take on, since an LLC does require you to actually treat it like a separate entity — separate bank account, its own paperwork, its own discipline.
If you’re testing an idea with minimal financial exposure and low risk of being sued, operating as a sole proprietor while you validate the business is a completely reasonable starting point- you can always convert to an LLC later, and most people do exactly that. If you’re already generating consistent revenue, working with clients under contracts, or doing anything with meaningful liability exposure, the cost of forming an LLC is generally small next to what it protects.
I eventually filed mine on a Wednesday afternoon, paid my state’s filing fee, and felt almost anticlimactic about how undramatic the process actually was compared to the spiral that preceded it. If you’re standing where I was, at least you can skip the 11 p.m. panic-Googling, you already know what the seventeen tabs would have told you.
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