The most convenient Multi Factor Authentication method worldwide was by far a smartphone, chosen by over 70 percent of respondents. By contrast, only five percent of respondents preferred a U2F security key in 2021.
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Cybersecurity Insiders. (February 1, 2021). Most convenient Multi-Factor Authentication (MFA) methods worldwide in 2021 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1303617/convenient-global-mfa-methods/
Cybersecurity Insiders. "Most convenient Multi-Factor Authentication (MFA) methods worldwide in 2021." Chart. February 1, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1303617/convenient-global-mfa-methods/
Cybersecurity Insiders. (2021). Most convenient Multi-Factor Authentication (MFA) methods worldwide in 2021. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1303617/convenient-global-mfa-methods/
Cybersecurity Insiders. "Most Convenient Multi-factor Authentication (Mfa) Methods Worldwide in 2021." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 Feb 2021, /statistics/1303617/convenient-global-mfa-methods/
Cybersecurity Insiders, Most convenient Multi-Factor Authentication (MFA) methods worldwide in 2021 ÌÇÐÄÆƽâ°æ, /statistics/1303617/convenient-global-mfa-methods/ (last visited July 24, 2026)
Most convenient Multi-Factor Authentication (MFA) methods worldwide in 2021 [Graph], Cybersecurity Insiders, February 1, 2021. [Online]. Available: /statistics/1303617/convenient-global-mfa-methods/
