Privacy

Cybersecurity / 22 Sep 2026 / 6 min read

Referrer-Policy Limits URL Data Sent Across Requests

Referrer-Policy Limits URL Data Sent Across Requests A URL can contain more information than a destination needs. Paths and query strings may expose document identifiers, search terms, workflow state, or other context. When a browser follows a link or fetches a resource, referrer handling determines how much of the source URL can accompany that request in the HTTP Referer header. Referrer-Policy gives the response an explicit rule for that disclosure. It does not encrypt URLs or remove data already sent elsewhere. Its role is narrower: constrain referrer information emitted by the browser for subsequent requests.

Cybersecurity Web Security

Software Engineering / 19 Sep 2026 / 8 min read

Ad-Supported Utility SaaS: Keep Processing Stateless and Data Ephemeral

Ad-Supported Utility SaaS: Keep Processing Stateless and Data Ephemeral A utility SaaS does not need a large content operation to create repeat traffic. A user may arrive to resize an image, clean a CSV file, convert structured data, generate a QR code, validate a document, or run another narrow transformation. The technical challenge is different from a conventional content site: each visit performs work. That work can become expensive quickly if every request uploads a file, allocates server memory, writes temporary objects, invokes a database, and retains artifacts after the user leaves. An ad-supported free tier makes this pressure more visible because revenue per visit is usually small compared with the cost of heavy compute or storage.

Software Engineering SaaS

Tech / 14 Sep 2026 / 5 min read

Private Wi-Fi Addresses Limit MAC-Based Tracking

Every Wi-Fi interface needs a link-layer address when it communicates on a local wireless network. This identifier is commonly called a MAC address. Network equipment uses it to distinguish devices while delivering frames within the local network. A fixed hardware MAC address can also act as a persistent identifier. If the same value appears across different places, systems observing Wi-Fi activity can potentially associate those appearances with one device. Modern operating systems reduce that exposure by using private or randomized Wi-Fi addresses instead of presenting the hardware address in many situations.

Wi-Fi Privacy

Tech / 14 Sep 2026 / 6 min read

Encrypted DNS Hides Name Queries From Local Networks

Opening a website usually starts with a name lookup. A device needs an IP address for a domain, so it sends a DNS query to a resolver. Traditional DNS commonly sends those queries without transport encryption, which allows networks along the local path to observe or alter them. Encrypted DNS changes that transport. DNS over HTTPS, often called DoH, carries DNS messages inside HTTPS. DNS over TLS, or DoT, carries them through a dedicated TLS connection. Both approaches protect queries between the client and the selected resolver from straightforward inspection on that path.

DNS Privacy

Tech / 14 Sep 2026 / 6 min read

DNS over HTTPS Encrypts Resolver Queries

Opening a website usually starts before the browser sends an HTTP request. The device first needs an IP address for the hostname, and DNS commonly provides that mapping. Traditional DNS traffic can expose those queries to systems along the network path because classic resolver exchanges are not encrypted by default. DNS over HTTPS, usually shortened to DoH, changes the transport. It sends DNS messages through HTTPS, so the request and response receive the confidentiality and integrity protection of the HTTPS connection between the client and the selected resolver.

DNS HTTPS

Tech / 13 Sep 2026 / 7 min read

Private Wi-Fi Addresses Limit Device Tracking

Every Wi-Fi interface needs a link-layer address for local network communication. Traditionally, a device used a factory-assigned MAC address whenever it joined a wireless network. That stable value made local identification convenient, but it also gave network operators and nearby systems a persistent identifier that could be observed across different places. Modern operating systems can instead present a private, randomized MAC address. The feature changes an identifier visible on the local Wi-Fi network without changing the device’s account, internet address, or other identity signals.

Wi-Fi Privacy

Tech / 13 Sep 2026 / 5 min read

Private Browsing Changes Local Storage, Not Network Visibility

Opening a private browser window changes what the browser keeps after that session ends. It does not create an anonymous internet connection. That distinction matters because several kinds of visibility exist at once. A browser can avoid retaining local history while a website still receives the connection, an internet provider still carries the traffic, and an employer or school network can still apply its own monitoring or filtering. Private browsing mainly changes browser-side data handling.

Web Browsers Privacy

Tech / Updated 15 Sep 2026 / 5 min read

Hidden Wi-Fi Network Names Do Not Hide Radio Activity

A Wi-Fi network can disappear from the normal list of nearby networks even while its access point continues transmitting. The network has not become radio-silent. It has only stopped presenting its network name in the usual discovery information. This setting is often called a hidden network or hidden SSID. SSID is the identifier commonly shown as a Wi-Fi network name. Hiding it changes discovery behavior, but it does not turn the wireless network into an invisible or private radio link.

Wi-Fi Networking

Tech / 12 Sep 2026 / 6 min read

What Browser Profiles Separate on a Shared Computer

A browser can open with one person’s bookmarks, signed-in sites, and preferences, then switch to another profile and show a different set. The computer has not changed users, yet the browser behaves as if it has a separate workspace. Browser profiles provide that separation inside the browser. They can be useful when several people use one computer, or when one person wants distinct work and personal browsing contexts. The boundary is narrower than a separate operating-system account, however, and treating the two as equivalent can create false expectations about privacy.

Browsers Privacy

Cybersecurity / 12 Sep 2026 / 7 min read

Control Referrer Data with Referrer-Policy

A browser can attach source-page information to an outbound request through the HTTP Referer header. That context can help with analytics, navigation flows, and abuse detection, but it can also expose more URL data than a destination needs. An explicit Referrer-Policy gives a site control over this boundary. The main security objective is simple: send the minimum source context needed for legitimate behavior, especially when a request crosses to another origin.

Cybersecurity Web Security

Cybersecurity / 04 Sep 2026 / 10 min read

Reduce Account Enumeration with Consistent Authentication Responses

A login form can reject every incorrect password and still reveal useful information about its users. If the application says Account not found for one email address and Wrong password for another, anyone who can submit login attempts can learn which address belongs to an account. That information leak is called account enumeration. The same problem can appear in password-reset, registration, invitation, and account-recovery flows. Even when the visible message is identical, differences in HTTP responses, redirects, response size, or processing time can reveal the same fact.

Cybersecurity Authentication