Port 6571Windows Live FolderShare
Windows Live FolderShare was a Microsoft service that enabled seamless file synchronization and sharing across multiple devices. It allowed users to maintain updated folders across different computers over the internet, supporting easy collaboration and remote access before Microsoft's integration into their Live Mesh/OneDrive services..
- transport
- unknown
- in transit
- cleartext
- assignment
- unofficial
- risk
- 4/10
- lookups
- 11,195
single transport
payload readable on path
used by convention
caution
rank 373 of 993 · top 37%
Technical Details
what runs on :6571Windows Live FolderShare operated as a peer-to-peer file synchronization tool that allowed users to keep folders across different devices in sync automatically. This was achieved by installing the FolderShare client on each device, which communicated with Microsoft's servers to authenticate and coordinate the synchronization process.
The underlying protocol leveraged encrypted tokens for authentication but actual data transfer was mostly unencrypted and transmitted over direct peer-to-peer connections when possible, often navigating network address translation (NAT) and firewalls via relay servers if necessary. The port 6571 was utilized by FolderShare clients to facilitate this communication, though it is not a standardized or IANA-assigned port.
FolderShare has since been deprecated but during its operational period, it represented an early approach to cloud-based file management, bridging devices for near real-time file updates without relying solely on centralized server-based storage models.
Security Information
exposure of :6571risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
file transfer averages 4.1 across 114 ports — this one sits 0.1 below.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
unofficial
used by convention, not registered — what answers here varies by deployment
reachable over
unknown
every listening transport is another surface to filter at the edge
security overview
Common Vulnerabilities:
- Exposure of sensitive data during transfers if communications were intercepted, as FolderShare did not enforce end-to-end encryption.
- Potential for unauthorized access if FolderShare client credentials were compromised.
- Exploitation vector if the port was left open unnecessarily or if FolderShare components were no longer supported and unpatched.
Common Mitigations:
- Close port 6571 on network firewalls unless explicitly required.
- Remove deprecated or unused FolderShare client software.
- Employ strong authentication credentials and multi-factor authentication where possible.
- Use modern, encrypted cloud storage services that are actively maintained with security updates for file sharing and synchronization.
Related Ports
the 8 most looked-up other ports in file transfer — 114 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :9080 | Groove RPC | TCPUDP | Web Services | caution | 70.8k |
| :17500 | Dropbox LAN Sync | TCPUDP | File Transfer | caution | 43.7k |
| :548 | Apple Filing Protocol | TCP | File Transfer | caution | 36.8k |
| :7000 | Vuze HTTPS Tracker | TCPtls | Security | caution | 28.9k |
| :1337 | PowerFolder P2P | TCP | Security | caution | 27.1k |
| :9001 | SharePoint Authoring | Web Services | caution | 26.3k | |
| :8080 | FilePhile Relay | UDP | File Transfer | caution | 25.6k |
| :1337 | WASTE Encrypted Sharing | TCP | Security | caution | 22.9k |
risk mix of the 8 listed
- caution100%
1 of 8 encrypted