Security Features

All file transfers on Realtime Sender use TLS 1.3 (Transport Layer Security), the latest and most secure version of the encryption protocol. This ensures that data transmitted between your device and our servers cannot be intercepted or read by third parties.

When you upload a file, it's encrypted in transit. When someone downloads it, the transfer is equally protected. This is the same level of security used by banks and financial institutions for online transactions.

• TLS 1.3 encryption on all connections
• HTTPS-only access - no unencrypted endpoints
• Strong cipher suites for maximum protection
• Certificate pinning for additional security

What this means: Even if someone intercepted the data being transferred, they couldn't read it without the encryption keys that only your browser and our servers possess.

Unlike cloud storage services that keep your files indefinitely (creating long-term security risks), Realtime Sender automatically deletes files after one download or 5 minutes of inactivity. This ephemeral approach means:

• Files exist only during the transfer window
• No historical data for attackers to target
• Reduced data breach risk
• Compliance with data minimization principles

How it works: The moment a file is successfully downloaded using its code, it's permanently erased from our servers using secure deletion methods. If not downloaded within 5 minutes, it's automatically purged.

This approach aligns with security best practices and privacy regulations that emphasize data minimization - collecting and retaining only what's necessary for the shortest time needed.

Each file receives a unique 6-character access code generated using cryptographically secure random number generators. These codes are:

• Impossible to predict or guess
• Single-use only - invalid after first download
• Time-limited - expire after 5 minutes
• 36^6 possible combinations (over 2 billion)

Code Security: The randomness comes from your device's secure random number generator combined with server-side entropy, ensuring codes are truly unpredictable. Even we can't predict what code will be assigned to a file before it's uploaded.

For Pro and Max users, custom codes undergo the same security checks while allowing memorable codes for easier sharing.

We implement multiple layers of protection to ensure service availability and prevent abuse:

Rate Limiting

To prevent spam and ensure fair usage, we limit how frequently individual IP addresses can upload files. This prevents automated abuse while allowing legitimate users normal usage.

DDoS Mitigation

Our infrastructure includes DDoS (Distributed Denial of Service) protection to maintain service availability even during attack attempts. Traffic is filtered to block malicious requests while allowing legitimate transfers.

Abuse Detection

Automated systems detect suspicious patterns like bulk uploads, unusual download patterns, or known malicious content. Detected abuse results in immediate blocking.

• IP-based rate limiting
• Behavioral pattern analysis
• Automated abuse response
• Human review for edge cases

Realtime Sender operates on a privacy-first principle. You can use our service without providing any personal information:

• No name required
• No email required for basic usage
• No phone number
• No identity verification

Even when you create an account for premium features, we only require an email address for login purposes. We don't ask for or store:

• Real names or addresses
• Phone numbers
• Government IDs
• Payment information (handled by secure processors)

This minimal data collection approach reduces your privacy risk and ensures that even in the unlikely event of a data breach, there's minimal personal information to compromise.

Our servers and infrastructure follow security best practices used by major technology companies:

Server Hardening

• Regular security patches and updates
• Minimal attack surface - only necessary services running
• Firewalls restricting network access
• Intrusion detection systems

Physical Security

• Data centers with 24/7 security
• Biometric access controls
• Video surveillance
• Redundant power and cooling systems

Data Storage

• SSD storage with encryption at rest
• Files isolated per transfer
• Automated secure deletion
• No backups of temporary files

For security and troubleshooting, we maintain minimal server logs:

• IP addresses (anonymized where possible)
• Timestamps of access
• Error logs for debugging
• Abuse detection data

Retention Policy: All logs are automatically deleted after 14 days maximum. We don't keep long-term records of who uploaded or downloaded what files.

This approach balances the need for security monitoring and abuse prevention with user privacy. We log just enough to maintain service security and investigate issues, then purge that data promptly.

Realtime Sender's architecture aligns with major privacy and security standards:

GDPR Compliance

Our privacy-first approach naturally aligns with GDPR principles: data minimization, purpose limitation, storage limitation, and security. Our automatic deletion and minimal data collection satisfy many GDPR requirements by design.

Data Protection

• Privacy by design and default
• Data minimization - we collect only what's necessary
• Storage limitation - automatic deletion
• Security of processing - encryption and safeguards

Industry Standards

• OWASP security guidelines
• CIS benchmarks for server hardening
• ISO 27001 aligned practices
• Regular security assessments

We believe in the security community's role in keeping services safe. We welcome responsible disclosure of security vulnerabilities:

• No legal action against good-faith security research
• Recognition for valid vulnerability reports
• Timely fixes for reported issues
• Transparent communication about security improvements

How to report: If you discover a security issue, please email us at security@realtimesender.com with details. We'll investigate promptly and work with you to resolve any valid concerns.

We ask that you: provide reasonable time for us to fix issues before public disclosure, avoid accessing others' data, avoid degrading service for users, and document your findings clearly.

While we secure our platform, you can enhance your security:

Share Codes Privately

Don't post access codes publicly on social media, forums, or chat rooms where unintended people might see them. Share directly with your intended recipient through private channels.

Verify Recipients

When receiving a file, confirm with the sender that they actually sent it before downloading. This prevents falling for impersonation attempts.

Use Strong Custom Codes

If using custom codes, avoid easily guessable patterns like "123456" or "PASSWORD". Make them memorable but not obvious.

Check Filenames

Be cautious of files with suspicious extensions (like .exe disguised as documents). While we scan uploads, exercising caution with unexpected files is always wise.

Download Promptly

Files expire after 5 minutes. Download files as soon as you receive the code to avoid expiration and potential interception.

If you have questions about our security practices, concerns about a specific security issue, or want to report something suspicious, please contact us:

• General security questions: support@realtimesender.com
• Vulnerability reports: security@realtimesender.com
• Abuse reports: Include relevant codes and details

We take all security concerns seriously and aim to respond within 24 hours for security-related issues.