How to verify a firm in the FSA registry and JSDA membership, telling brand from legal entity, spotting clone sites and social-media scams, and account security.
Verify any firm in the FSA’s operator registry and JSDA membership before sending money, distinguish the brand from the legal entity, and treat unsolicited social-media "advisers," remote-control-software requests, and cloned sites as scams.
Before you send money or identity documents, confirm the firm is genuinely registered. The FSA maintains a registry of financial instruments business operators; the Japan Securities Dealers Association (JSDA) maintains a member list. A firm that cannot be found in the appropriate register, or that pressures you to skip verification, is a red flag.
Distinguish the brand from the legal entity. Marketing names, app names, and group brands may differ from the registered legal entity that actually holds the licence. Match the exact legal name on the account documents against the register, rather than trusting a familiar logo or a similar-sounding name.
A legitimate brokerage registration does not make every account claiming to represent it legitimate. Common scams include cloned websites that copy a real firm’s branding, social-media "investment groups" or private-message "advisers" promising unusual returns, and impersonation of well-known firms or their staff. A real, registered firm can be perfectly legitimate while a fake page using its name is a fraud.
The most dangerous request is to install remote-control software so an "adviser" can "help" you trade or "recover" money — this hands over your device and accounts. Never do it. Treat guaranteed high returns, urgency, and pressure to move money quickly as classic warning signs, and reach the firm only through its officially published contact details.
Good operational security reduces the damage from phishing and account takeover. Use a unique password not reused elsewhere, enable multifactor authentication, and turn on withdrawal-destination locking so funds can only leave to a pre-registered account. Enable transaction and login alerts, and periodically review your devices and login history.
Be alert to phishing: legitimate firms do not ask for your full password or one-time codes by email or message. If you spot unauthorized activity, contact the firm through its official channel immediately, change credentials, and preserve evidence. Fast reporting improves the chance of limiting loss.
Brokerage (NISA/iDeCo) · Rakuten Securities
A leading low-cost brokerage for NISA and index-fund investing, integrated with Rakuten points and Rakuten Bank.
Fees: Many domestic funds and trades are low- or no-commission — verify current fee schedule.
Brokerage (NISA/iDeCo) · SBI Securities
Japan’s largest online brokerage by accounts, with a very broad low-cost fund lineup and full NISA/iDeCo support.
Fees: Many trades and funds are low- or no-commission — verify current fee schedule.
Brokerage (NISA/iDeCo) · Monex
An established online brokerage often chosen for US-stock access and research tools, with NISA and iDeCo support.
Fees: Commissions vary by product; some funds/trades are low-cost — verify current schedule.
This is education, not a recommendation. Most beginners research low-cost, broadly diversified index funds — for example all-country (全世界株式) or S&P 500 trackers — rather than picking individual stocks, because low fees and diversification are within your control while returns are not. Understand that values fall as well as rise, match the risk to your time horizon, and never invest money you may need soon.