Ledger Nano S Plus 安全吗? The Truth About Its Security

Bitcoin trades at $76,796 and Ethereum at $2,219, according to real-time market data as of October 30, 2026. Both are down more than 4% in 24 hours. When prices swing like that, nobody wants to find out their storage was weak. People search "Ledger Nano S Plus 安全吗" (in plain English: "is the Ledger Nano S Plus safe?") because one mistake with a seed phrase cannot be reversed. This guide covers what the device protects, what it cannot protect, and the checks that matter before you move funds onto it.

How the Nano S Plus protects your keys

A hardware wallet separates the thing that signs transactions from the computer or phone that can be infected with malware. The Nano S Plus works like this:

1. Offline seed generation. When you set up the device, it creates a recovery phrase (BIP39 standard, 24 words) inside the device. The phrase is never sent to Ledger Live, your computer or the internet.
2. Key storage in the secure element. Private keys are derived from the seed and held in the secure element chip, which is designed to resist physical and side-channel attacks.
3. On-device signing. Your computer or phone builds a transaction and sends it to the device. You read the address and amount on the device screen and approve with the physical buttons. Only the signed transaction goes back out.
4. PIN protection. The device asks for a PIN and wipes itself after repeated wrong entries. You then restore from your 24-word phrase.

The 24 words are the real vault. Anyone who has them can rebuild your keys on any compatible wallet, with no device needed. The wallet is safe only as long as the paper or metal backup stays private.

Ledger states that the Nano S Plus supports 15,000+ coins and tokens. Support is split between native apps installed on the device and third-party wallet integrations. Not every asset has the same level of on-screen transaction detail, so check how your specific token is displayed before sending large amounts.

CC EAL6+ and the closed-source question

The Nano S Plus uses an ST Microelectronics secure element. Ledger describes this chip as Common Criteria EAL6+ certified. Common Criteria is an international framework for evaluating security products, and EAL6+ sits near the top of its assurance scale for this type of component.

Two caveats matter here:

• The certification covers the chip, not the whole device. The chip's certification says nothing about Ledger's operating system, its apps or your habits.
• The secure element is closed source. Secure element chips are typically built under non-disclosure agreements with the chip maker. As a result, the chip firmware and parts of Ledger's operating system cannot be publicly inspected. Ledger publishes many of its app and wallet code repositories, but the lowest layer is not open for community review.

The trade-off is real. Closed-source secure elements offer stronger physical tamper resistance than a general-purpose microcontroller, but you must trust the vendor and its testing instead of reading the code yourself. Open-source-first wallets take the opposite approach. Neither model is risk-free, and your choice depends on whether you trust certification or public review more.

Ledger's Donjon is its in-house team of white-hat hackers that attacks Ledger and competitor hardware and publishes research. This kind of adversarial testing is useful. Because Donjon belongs to the vendor, treat it as internal testing and not a substitute for an independent third-party audit.

Track record and past incidents

According to public records and widely reported coverage, Ledger has faced several incidents. Separating them by type is the most useful way to judge the device. For ongoing news on events like these, see data from CoinDesk.

The 7 million+ figure is Ledger's own sales claim. Do not read "no hacks" as "no losses". People have lost funds with Ledger devices through fake support, fake apps and entering their phrase into phishing sites.

7 security layers and checks

1. Secure element chip. Keys are held in tamper-resistant hardware that is separate from your computer.
2. Offline seed generation. The recovery phrase is created on the device and displayed only on its screen.
3. Physical confirmation. Every transaction must be approved with the device's buttons. Malware on your PC cannot press them.
4. PIN with wipe. Repeated wrong attempts reset the device, which protects against thieves who find it.
5. USB-C connection. The Nano S Plus has no Bluetooth and no battery. It connects by cable only, so a wireless radio is not part of the design. USB-C is also the standard port on many modern laptops and Android phones, which makes cable-based signing more convenient. The cable itself does not make the chip more secure. Its advantage is a smaller wireless attack surface and easier compatibility.
6. Firmware updates. Updates are delivered through Ledger Live and signed. Update only from the official app and read the on-device prompts.
7. Genuine check. Ledger Live performs an authenticity check when you connect. A failed check means stop and do not use the device.

Nano S Plus vs Nano X and alternatives

The key difference from the Nano X is Bluetooth and the battery. The Nano X gives you wireless mobile use. The Nano S Plus gives you fewer moving parts and no radio. If you mainly sign from a desktop, the S Plus is the simpler choice. If you sign from a phone often, the Nano X is more convenient. Check Ledger's current store listing for model availability, since Ledger has released newer devices since the S Plus launched. Prices change, so confirm them on the official site.

For a wider model-by-model view, see our best hardware wallets guide.

Considerations for users in China

• Regulatory risk. Crypto rules in mainland China are restrictive and can change. A hardware wallet is self-custody software and hardware, but rules and enforcement can change. Check current local rules and consult a qualified adviser. This is not legal advice.
• Purchase channel. Buy only from Ledger's official website or a reseller listed there. Do not buy from marketplace sellers or second-hand listings. Tampered units with a pre-filled recovery sheet are a known scam pattern.
• Fake device signs. A genuine device makes you create a new PIN and generate your own recovery phrase. If the box includes a pre-written phrase, or the seller asks you to use it, stop. Do not use that device.
• Language and support scams. Fake "support" accounts on Telegram, WeChat and other chat apps often ask for your 24 words. Ledger never needs them.
• Shipping and customs. Check whether your destination is supported by Ledger's checkout and what customs rules apply before ordering.

Interactive safety checklist

Tick each item before moving meaningful funds onto the device.

• I bought the device from Ledger's official website or a listed reseller.
• The packaging was sealed and the device asked me to set a new PIN.
• I wrote my 24 words on the supplied card or a metal plate, not in a phone photo, cloud note or email.
• I stored the backup separately from the device.
• Ledger Live passed the genuine device check.
• I sent a small test transaction first.
• I always compare the address and amount on the device screen with the app.
• I will never type my 24 words into any website, app or chat.
• I have a plan for who can access the backup if something happens to me.

Practical setup notes

The sequence that avoids most beginner losses is short. Download Ledger Live only from Ledger's official site. Connect the device by cable, choose "set up as new device", pick a PIN, and write each of the 24 words as the screen displays them. Confirm the phrase when the device asks you to. Install the app for the coin you plan to hold, generate a receiving address, and verify that address on the device screen before sending anything.

Common errors and fixes:

• Device not recognized. Try a different USB cable that carries data, since some cables only charge, and unlock the device with your PIN first.
• Lost PIN. Repeated wrong tries wipe the device. Restore it with your 24 words on the same device or a compatible wallet.
• Funds not showing. Install the right coin app, and check you are looking at the correct network and account.
• Unexpected pop-up asking for the phrase. Close it. Real Ledger apps never ask you to type the 24 words on a computer.

An honest trade-off: a hardware wallet protects against remote theft, but it moves responsibility to you. If you lose both device and backup, no support team can recover your coins. Ledger Recover is optional and involves identity verification and third-party providers, so some users avoid it. Decide deliberately.

If you are still deciding on custody, read how cold wallet vs hot wallet security compare, and how to build a seed phrase backup guide that survives fire and theft. Traders who use DeFi apps should also read DeFi wallet security basics. For the bigger picture on risk, see crypto custody risk analysis, the complete fintech guide, and more crypto articles.

FAQ

What is the Ledger Nano S Plus?

It is a USB-C hardware wallet made by Ledger. It holds private keys inside a secure element chip and signs transactions on the device. It has no Bluetooth and no battery.

Is it safe to use the Ledger Nano S Plus?

For key storage, it is widely regarded as a strong option, because the keys never leave the chip. Losses often come from phishing, counterfeit units and exposed seed phrases. Safety depends on how you buy, set up and back up the device.

How do I know my Ledger Nano S Plus is genuine?

Buy from the official store, make sure the device asks you to create your own PIN and recovery phrase, and pass the genuine check in Ledger Live. Reject any unit that comes with a pre-filled recovery sheet.

Why is the secure element closed source?

Secure element chips are built under confidentiality agreements with the chip manufacturer, so the lowest-level firmware is not public. The chip carries a CC EAL6+ certification. The trade-off is that you rely on certification and vendor testing instead of public code review.

How does the Nano S Plus differ from the Nano X in security?

Both use secure elements. The main difference is that the Nano X adds Bluetooth and a battery for wireless mobile use, while the Nano S Plus is cable-only. If you do not need wireless signing, the S Plus has fewer features to worry about.

How should I store my seed phrase?

Write it on paper or a metal backup, keep it offline, and store it somewhere separate from the device. Do not photograph it or save it in cloud notes, email or messaging apps.

Is the Ledger Nano S Plus legal to own in China?

The device is a storage tool, but crypto rules in mainland China are restrictive. Rules can change, so check current local regulations and seek qualified advice before buying or using one.

Read Full Guide

For a complete overview, see our Best Crypto Wallets Guide.

Disclosure: Pro Trader Daily and xpertrax.com are operated by the same owner. Links and pop-ups pointing to xpertrax.com promote our own products. This article is for information only and is not financial advice.