The Sentry intercepts syscalls using one of several mechanisms, such as seccomp traps or KVM, with the default since 2023 being the seccomp-trap approach known as systrap.
Users can also manually switch to the "A*" routing engine in settings if they know their profile is highly experimental or unique.
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Address bars are not immune. Browser address bars typically render in the system UI font (San Francisco on macOS, Segoe UI on Windows). Both are standard sans-serif fonts in the high-danger-rate category. Chromium’s IDN homograph protection catches many cases by displaying punycode for suspicious mixed-script domains, but it relies on script-mixing heuristics, not pixel comparison. A domain using only Cyrillic characters that happen to spell a Latin word (like “аpple” in all-Cyrillic) may still render in the address bar’s font and look identical.
February 25, 2026