ファックスは個人情報を安全に送信できるか？ファックス vs Eメール

Is faxing secure enough for personal health records or confidential financial documents? Yes, when it is done through a modern online platform. Fax.Plus answers that with specifics, not reassurance: AES-256 encryption at rest, TLS in transit, and an audit trail on every transmission.

Secure online fax platform interface for sending confidential documents

How Secure Is Faxing, Technically?

Traditional fax machines transmit over the Public Switched Telephone Network (PSTN), a closed line that never touches the open internet. Fax.Plus sends the same document through an encrypted online connection instead: AES-256 encryption at rest and TLS in transit, so a tax return or medical result is protected whether it is stored or moving through Fax.Plus infrastructure.

ファックスのセキュリティ vs. Eメールのセキュリティ

比較分析：ファックス vs. Eメール

Fax uses a direct, point-to-point phone line connection between sender and recipient. Email routes through multiple servers and can sit in an inbox indefinitely, exposed to phishing and account takeover attempts. That structural difference, not fax being old technology, is why faxing personal information carries less exposure than an unencrypted email.

脆弱性とリスク評価

Are fax machines secure? Not automatically. A traditional machine left unattended can expose whatever prints on it, and physical or carrier-level access to the call itself is a real, if higher-effort, risk. Fax.Plus reduces the first risk by routing faxes to an encrypted digital inbox instead of a shared machine.

Is Fax Encrypted?

Yes, for the part Fax.Plus controls. Fax.Plus encrypts your fax with TLS 1.3 in transit and AES-256 at rest, from upload through storage and delivery inside its own infrastructure. The final leg, the actual call placed to the recipient's fax number, travels a telecom carrier's network rather than Fax.Plus systems, so that leg is not covered by Fax.Plus TLS.

安全なファックスオプション

従来のファックス機 vs. オンラインファックスサービス

Physical fax machines offer no encryption and no delivery record. Online services add three things a physical machine cannot: encryption in transit and at rest, user authentication including two-factor authentication, and a full audit trail. Fax.Plus adds delivery confirmation, so you know a sensitive document reached the intended recipient.

個人情報の安全な送信

Fax.Plusでの安全なオンラインFaxの仕組みは次のとおりです。

Access and Login

Start by securely logging into your account with multi-factor authentication.

Prepare and Protect

Upload your document, double-check recipient information, and attach files securely. Activate encryption features and adjust privacy settings.

Confirmation and Record Keeping

Receive immediate confirmation of delivery and keep digital logs for easy audits.

公共のファックス機：リスクと軽減

A public fax machine at a library, print shop, or shared office has the same weakness as a shared printer: anyone nearby can see or take what comes out. If you must use one, send only non-sensitive material and retrieve your pages immediately. For anything with a name, an account number, or a diagnosis on it, use an online fax service that never prints the document at all.

安全なファックス送信のためのベストプラクティス

Verify the recipient's fax number before sending. Use an online fax service with encryption in transit and at rest. Keep a delivery confirmation and audit trail for every sensitive fax. In healthcare, legal, or finance, confirm your provider supports HIPAA with a signed BAA, GDPR, or the relevant industry standard before sending regulated data.

Compliance and Secure Fax Requirements

HIPAA and GDPR both require specific safeguards for personal data in transit and at rest, including encryption, access controls, and audit trails. A HIPAA-covered account also needs a signed Business Associate Agreement (BAA) with its fax provider. Fax.Plus supports both with AES-256 encryption at rest, TLS in transit, full audit trails, and a signed BAA on Enterprise HIPAA plans.

Traditional fax has real, well-understood limitations. Online fax addresses them with encryption, authentication, and audit trails, without giving up the point-to-point simplicity that makes fax useful. Those are the safeguards to look for in a provider.

よくある質問

ファックスはEメールよりも安全ですか？

はい、Fax.Plusのような最新のFaxソリューションは、暗号化された送信を提供するため、一般的な電子メールよりも安全です。

オンラインファックスは安全ですか？

もちろんです。Fax.Plusのようなサービスは、機密データを保護するために、暗号化、安全なストレージ、監査ログを提供します。

Are fax machines secure?

Not automatically. A traditional fax machine has no encryption and can expose printed pages to anyone nearby. Fax.Plus reduces both risks with an encrypted digital inbox and no printed output by default.

Is fax encrypted?

The leg Fax.Plus controls, yes: TLS 1.3 in transit and AES-256 at rest, from upload through storage and delivery. The final call to the recipient's fax number travels a telecom carrier's network and is not covered by that TLS.

Is it safe to fax personal information?

Yes, when sent through a service with encryption, access controls, and audit trails. Fax.Plus supports all three, plus a signed BAA for HIPAA-covered accounts on Enterprise plans.

Is fax or email more secure?

Fax generally carries less exposure, since it does not sit in an inbox indefinitely or pass through as many systems as email. The security gap narrows significantly once email is properly encrypted.

What is secure fax?

A secure fax is one sent through a service that encrypts the document in transit and at rest, authenticates the sender, and logs delivery. Fax.Plus provides these safeguards across its service.

How secure is fax compared to older methods?

Online fax is more secure than a shared printer or an unattended machine, and more secure than unencrypted email. A remaining risk is exposure at the receiving end, which a digital inbox reduces.

Explore More on Fax Security and Basics

Get the fundamentals behind how fax works, what affects delivery, and how Fax.Plus meets healthcare and cross-border compliance standards.

Send sensitive documents securely.

Create a Fax.Plus account to send personal, financial, or healthcare documents with encryption, delivery tracking, and a complete audit trail.

アカウントを作成

パートナーになりませんか？

アフィリエイトプログラムに参加して、卓越したオンラインFAXソリューションをオーディエンスに提供しましょう。

パートナーになる

ALOHI製品

ソリューション

電子署名 AI電話オンラインFAX モバイルスキャナー Enterprise Faxing Enterprise電子署名

料金

Sign.Plusの価格 Dial.Plusの価格 Fax.Plusの価格バンドルプラン

開発者

デベロッパーセンター Sign.Plus API Fax.Plus API 無料の開発者アカウント

リソース

ヘルプセンターブログリリースノートシステムステータス

会社

Alohiについてプレス採用情報アフィリエイトプログラムリーガルお問い合わせ

信頼とセキュリティ

トラストセンターセキュリティ概要コンプライアンスデータ所在地電子署名の法的ガイド

サポートにより構築

Schweizerische Eidgenossenschaft
Confédération Suisse
Confederazione Svizzera
Confederaziun Svizra
Swiss Confederation
Innosuisse - Swiss Innovation Agency