Sennheiser Momentum 4

Security Grade

Calculator v1

   Brand: Sennheiser (Parent: Sennheiser Electronic GmbH & Co. KG)

   Category: Sennheiser Momentum 4 • Model / Gen: 4th generation Headphones

   Release Date: 2022-09-02 • Status: In sale

   Classification Date: 2025-10-17 • Official Website

Security Evaluation

Criterion	Value	Proof	Comment
Known hardware tampering	None	[Momentum 3 Manual, Momentum 4 Manual 🔗 Proof]	As consumer audio devices, they have no public records of hardware tampering cases; internal components are not designed for user modification, reducing tampering risks.
Known vulnerabilities	Rare	[Sennheiser Security Advisory, CVE Database 🔗 Proof]	No high-severity vulnerabilities (e.g., remote code execution) have been publicly disclosed. Rare low-severity issues (e.g., minor Bluetooth connectivity glitches) are resolved via firmware updates.
Prior attacks	None	[Sennheiser Official Statements, Cybersecurity News Archives 🔗 Proof]	There are no documented cases of targeted cyberattacks (e.g., data theft, malicious access) against these two headphone models.
Updatability	Very common	[Momentum 3 Update Guide, Momentum 4 Update Guide 🔗 Proof]	Firmware updates (for bug fixes, security patches, and feature enhancements) are regularly released via the Sennheiser Smart Control app, with a user-friendly update process.
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	[Partial 🔗 Proof]	Momentum 3 Bluetooth Guide, Momentum 4 Bluetooth Guide
Communications	Encrypted with up-to-date encryption	[Encrypted with up-to-date encryption 🔗 Proof]	Sennheiser Audio Security, Bluetooth 5.2 Spec
Storage	Encrypted with up-to-date encryption	[Encrypted with up-to-date encryption (limited) 🔗 Proof]	Momentum 4 User Manual - Data Storage
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Account management	Absent	[Sennheiser Smart Control Features 🔗 Proof]	The Sennheiser Smart Control app does not require a user account for headphone pairing/management; no account creation, deletion, or permission settings exist.
Authentication	Absent	[Momentum 3 Pairing Guide, Momentum 4 Pairing Guide 🔗 Proof]	No user authentication (e.g., password, biometrics) is required to connect to or control the headphones; any device can pair with them if they are in pairing mode.
Brute-force protection	Absent	[Sennheiser Support FAQ 🔗 Proof]	Since no authentication is required, there is no attack surface for brute-force attempts (e.g., password cracking), so no protection mechanisms are needed.
Event logging	Absent	[Momentum 4 Manual - Diagnostics 🔗 Proof]	No logging of user access events (e.g., pairing history, connection times); the device lacks a diagnostic feature for event tracking.
Passwords	Default/Common/Easy to guess	[Sennheiser Support - Password Questions 🔗 Proof]	The headphones do not use passwords for pairing or management. Bluetooth pairing uses a default "0000" PIN (if legacy pairing is enabled) or no PIN (for secure simple pairing), which is standard for consumer Bluetooth devices.
Category Score	Score: 3 / 3