Yes it is a very safe device, with very strong and proven protection of your wallet seed. Using a secure layered firmware solution that firewalls the different coins from each other.
Why are people saying Ledger isn't safe?
Ledger is poor security because its closed source, so nobody can check if Ledger has insecure code or is simply downright malicious and stealing private keys. This is not something you want to 'trust' a company with, especially when you absolutely do not have to.
Has the Ledger been breached? Ledger has faced reputational damage from earlier customer-data exposures, notably a 2020 incident tied to its marketing and e-commerce database that reportedly exposed the information of roughly 272,000 customers. That earlier leak was followed by widespread phishing and physical mail scams.
Can a Ledger Wallet be compromised?
Hardware wallets like Ledger provide excellent security—but only when purchased directly from trusted sources, such as the official Ledger website or authorized resellers. Avoid secondary marketplaces, which may be rife with compromised devices.
Using a Ledger hardware wallet offers a safeguard against these key threat vectors, as well as complete transparency as you transact on Web3. It's a no-brainer: why would you use anything else to store your crypto private keys? Do not hold larger sums of crypto upon ANY 'hot wallet' -get a cold-storage solution and keep your BIP39 'seed-phrase' information OFFLINE, -do not store this data on your computer or upon any 'cloud' storage. Physical seed-phrase (not just written upon a scrap of paper and kept in a shoebox) is your better solution.
A 'Seed-Bank' is a better solution, -your seed-phrase inscribed onto a fire-resistant stainless steel card. (LEDGER Nano S Plus, and a SEED BANK stainless steel cards and inscribing pen shown)