(19)
(11) EP 4 505 691 A1

(12)

(43) Date of publication:
12.02.2025 Bulletin 2025/07

(21) Application number: 23718940.2

(22) Date of filing: 05.04.2023
(51) International Patent Classification (IPC): 
H04L 51/212(2022.01)
H04L 51/48(2022.01)
(52) Cooperative Patent Classification (CPC):
H04L 51/212; H04L 51/48
(86) International application number:
PCT/US2023/017530
(87) International publication number:
WO 2023/196376 (12.10.2023 Gazette 2023/41)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 07.04.2022 IN 202241020887
18.07.2022 US 202217867464

(71) Applicant: Cisco Technology, Inc.
San Jose, CA 95134-1706 (US)

(72) Inventors:
  • BEHERA, Durgamadhav
    Bangalore, Karnatakka 560068 (IN)
  • SINGH, Abhishek
    Morgan Hill, CA 95037 (US)
  • SACHEDINA, Muhammad
    Calgary, Alberta T2S 1C2 (CA)

(74) Representative: Mathys & Squire 
The Shard 32 London Bridge Street
London SE1 9SG
London SE1 9SG (GB)

   


(54) ALGORITHM TO DETECT MALICIOUS EMAILS IMPERSONATING BRANDS