Brainwork @brainworkblog
O Brainwork é um espaço para tecnologia, trazendo notícias, exemplos de configuração e todo tipo de novidades, focando principalmente em redes. brainwork.com.br Brasil/São Paulo Joined April 2009-
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🚀 Upgrade do Cisco Catalyst Center: como fazer sem dores de cabeça! O Catalyst Center (antigo DNA Center) é essencial para automação e insights em tempo real. Mas atenção: o upgrade exige planejamento cuidadoso. 📌 Dicas antes de iniciar: ✅ Confira a matriz de…
Blog: Guia Prático para Upgrade do Cisco Catalyst Center brainwork.com.br/2025/09/15/gui…
🚨 Bruteforce contra Fortinet SSL 🚨 A GreyNoise registrou um pico inédito de ataques bruteforce contra Fortinet SSL VPN, com mais de 780 IPs em apenas um dia. 🔎 O Brasil está entre os principais alvos, junto com Hong Kong. Além disso, os atacantes mudaram o foco: do FortiOS…
🔒 Microsoft Patch Tuesday – Setembro 2025 A Microsoft lançou 86 correções de segurança este mês, incluindo 6 vulnerabilidades críticas (CVSS ≥ 8.8). ⚠️ A mais grave: CVE-2025-55232 (HPC Pack) com pontuação 9.8 – risco de execução remota de código. 👉 Outras falhas críticas…
🚨 Escaneamentos massivos contra Cisco ASA 🚨 A GreyNoise detectou dois grandes picos de escaneamento em dispositivos Cisco ASA no final de agosto. 👉 O primeiro chegou a envolver mais de 25 mil IPs. 👉 O segundo, menor, apresentou as mesmas assinaturas de ataque. 🔎 Destaque:…
Blog: Microsoft Patch Tuesday – Setembro 2025 brainwork.com.br/2025/09/10/mic…
Blog: Evolução dos bruteforce em SSL VPN Fortinet brainwork.com.br/2025/09/10/evo…
🚨 Ataque à cadeia de suprimentos do npm Um ataque sofisticado comprometeu pacotes com 2 bilhões de downloads semanais no ecossistema npm, inserindo códigos maliciosos capazes de roubar dados e executar comandos remotos. ⚠️ 🔎 No blog, explicamos: ✅ Como o ataque aconteceu ✅…
Blog: Surto de Escaneamentos em Dispositivos Cisco ASA brainwork.com.br/2025/09/09/sur…
Blog: Ataque à Cadeia de Suprimentos: Hackers Sequestram Pacotes npm com 2 Bilhões de Downloads Semanais brainwork.com.br/2025/09/09/ata…
🔐 VPN Site-to-Site IPsec: Recomendações da NSA e do NIST Configurar uma VPN de forma segura não é apenas uma boa prática – é essencial para proteger dados sensíveis. A NSA (National Security Agency) e o NIST (National Institute of Standards and Technology) publicaram diretrizes…
Blog: Que protocolos usar na configuração de VPN Site to Site brainwork.com.br/2025/09/04/que…
🚨 ECA Digital: proteção ou risco de censura? O PL 2628/2022, aprovado pela Câmara dos Deputados, cria o Estatuto da Criança e do Adolescente Digital. 👶 O que traz de novo? ✔️ Verificação obrigatória de idade em plataformas ✔️ Ferramentas de supervisão parental por padrão ✔️…
🚀 Novidade da Cisco: Trilha dedicada para Wireless! A partir de 19 de março de 2026, a Cisco lança oficialmente as certificações CCNP Wireless e CCIE Wireless, trazendo foco total em tecnologias modernas como Wi-Fi 6, Wi-Fi 7 e Cisco Meraki. 🔹 O CCNP Wireless valida suas…
Blog: PL 2628/2022: O “ECA Digital” e seus impactos brainwork.com.br/2025/08/28/pl-…
Blog: Novos CCNP e CCIE Wireless brainwork.com.br/2025/08/26/nov…
🔎 Monitoramento de memória Cisco Catalyst 8500L: por que a CISCO-ENHANCED-MEMPOOL-MIB é essencial? Em dispositivos como o Cisco Catalyst 8500L-8S4X (IOS XE 17.12), o uso de ferramentas adequadas para monitorar RAM garante desempenho, precisão e segurança. ⚠️ A antiga…
Blog: OID SNMP Para Monitoramento de Memória Cisco Catalyst 8500L brainwork.com.br/2025/08/25/oid…
Blog: Microsoft Patch Tuesday Agosto 2025: Correções Críticas brainwork.com.br/2025/08/22/mic…
🔐 Alerta de Segurança Crítica: Cisco FMC em risco! A Cisco identificou uma vulnerabilidade grave (CVSS 10) no Firepower Management Center (FMC), que permite execução remota de código via protocolo RADIUS. Se explorada, essa falha pode dar controle total do sistema a invasores…

Cisco Insider Champio... @CiscoChampion
12K Followers 642 Following Cisco Champions are passionate technology experts who share their perspectives with the community. #CiscoChampion
Krypto Anonymous 🏴... @anonymousalert2
432 Followers 6K Following Did You Know How 2... . psyop🌐opsec ꧁༺*8₿ Aη⊕ηψm⊕uš #̸̥̬̯́̆̾͘A̷̪̝̠̜̣̐͛̍̈́̕ͅṇ̷̢̯̋̒͗́̕̕o̸̯̮͖͌̅̔̊n̴͖̜̜̬̝͊͗̎̋̆͑y̵̰͒̾̇m̷͕̦̳̝̈́͋̚ͅö̸̟̭̞̬̩͎́̌̇̔͂ú̸̺̱̮̖͊̂s̶ .ส้
HanZinza @DrHanzinza
8 Followers 76 Following Longevity nerd, AI junkie, biochem snob. Obsessed with health, tech & sarcasm. Aging despite my best efforts. If it’s not science, it’s nonsense.
Rodolfo Faria @Rodolfo74301300
4 Followers 263 Following
Rubens Paulo @rubenspauloo
247 Followers 815 Following Sempre fui um sonhador e o sonho é o que me mantem vivo! Filipenses 4:13 #SerMaisdoQueTer
LJ @luizjnsilva
101 Followers 1K Following
André L.S. Henriques @andreluizsh
10 Followers 114 Following
Rafael C. @RafaelC1991
49 Followers 150 Following Os melhores conselhos, são sempre os mais difíceis de seguir.
Islaine @islaine90
47 Followers 819 Following I wish I could but I don't want to. Network Analyst | Low profile
* May @MayScotti
118 Followers 522 Following Vai na fé (eu tô indo atrás) Graças a Deus (eu não choro mais) 👽https://t.co/ic9ZF3ocI1| 😍 https://t.co/heqKUjyUch | 👣https://t.co/EEOT6wPRo4
moura Moura @Moura_RJ021
6 Followers 278 Following
Willian O. Yoshinaga @willian_o_y
585 Followers 473 Following Libertário CLT. “Me arrancaram tudo à força e depois me chamam de contribuinte.” Millôr Fernandes
Ned Ren @nedren
10 Followers 153 Following
Ediekes Lopes @ediekeslopes
110 Followers 480 Following Network Engineer. Ministro da Palavra - Verbo da Vida Palmeiras...
Gabriel Pereira @Gnunesp
200 Followers 975 Following Apreciador de e-sports e tecnologia. Apaixonado pelo @Cruzeiro e @RealMadrid. ⚽️
Jeleel _| 🇳🇬 �... @retired_Zombie
130 Followers 193 Following My passion is centred in computer networks architecture and their security system. #EnterpriseNetworks | #BCSProfessional | #Crypto 📈📉 | #Stocks |
BATISTA SALES @BATISTASALESNO2
91 Followers 179 Following
LoKO Lokura @LoKOLokura1985
4 Followers 25 Following
Riccardo Nalesso @thetechguy_it
4K Followers 990 Following Connecting Networks that Connect People👨🏼💻 #CCIE EI 58773 | #CiscoChampion '23-25 | #SDN #ACI #Python #NetworkAutomation #SDWAN
Fabio J. Ortlieb 🇧... @fabioortlieb
45 Followers 572 Following
Vitor Vermaas @VitorVermaas
4 Followers 63 Following Pseudo Filósofo, Analista de Banco de Dados, Design e Músico de final de semana.
deniscf @deniscf
102 Followers 775 Following
Vinicius Gundim @viniciusgundim
54 Followers 229 Following
Jorge Janaite Neto @jorgejanaite
163 Followers 708 Following Software Programming, Information Retrieval, History and Z80/6502 Retrocomputers. Q108062073 #Forth programming #ForthLang
adriano rosa leao @noiteox
6 Followers 71 Following
Eliene Reis @ElieneReis4
271 Followers 421 Following
Max - Coach de bêbad... @Maxuellessa
68 Followers 2K Following
Raul Santana @RaulSan62918693
1 Followers 17 Following
Tuta_Nerd @NerdTuta
80 Followers 749 Following O poder que há em ajudar! Canal: https://t.co/3lDUEPiDs5
Laura Aguiar @LauraAguiarFC
3 Followers 47 Following
caiosvir @caiosvir
3 Followers 66 Following
José Messina @messina_sp
287 Followers 566 Following Fui Secretário de Esportes, Lazer e Recreação, dentre outras realizações.
Jonas Ramos @JonasRa36141922
1 Followers 44 Following
Katko Katmar @KKatmar
11 Followers 123 Following
Marcos Cesar @Mcesar11
42 Followers 588 Following
Ismael Farias @ismaelfinin
98 Followers 929 Following Analista de Infraestrutura | IT and Network Analyst
Carlos Santos @CarlosS08111287
24 Followers 607 Following
Alessandro Ribeiro @alessandrojbr
113 Followers 860 Following
Como Treinar sua IA.�... @allexpedu
416 Followers 4K Following O Impossível é Possível. #DataScience #ArquitetoAPPSoluções #DevForever #TechLead #Matemetico #vidadeti #Mestrado #livros #musica #ficcao #desenhar
⚡Eisenheim Sinclair... @fgledsonssouza
340 Followers 6K Following ⚡[email protected] ⚡[email protected] #Bitcoin #BTC #Lightning⚡️#Liberdade
Marcelo Henrique @marceloh1992
34 Followers 458 Following Cristão Presbiteriano, Marido, Analista de Cyber Segurança
David Bombal @davidbombal
170K Followers 696 Following YouTube: https://t.co/xGPVEj6ULN Discord: https://t.co/GZI30F45va Website: https://t.co/MpcS9ylBrV
Cisco Networking @CiscoNetworking
184K Followers 226 Following Automate, secure, and scale your network with a software-delivered approach. #CiscoNetworking #UnifiedExperiences
Cisco Insider Champio... @CiscoChampion
12K Followers 642 Following Cisco Champions are passionate technology experts who share their perspectives with the community. #CiscoChampion
NetworkChuck @NetworkChuck
219K Followers 635 Following Believer. Beard. Coffee. Tech. Youtube. Check the link in my bio to see my latest video!
Rowell @rowelldionicio
6K Followers 1K Following Helping IT pros fix Wi-Fi, cut down tickets, and build networks that work.
Ayub | Internet propr... @ayubio
24K Followers 190 Following Me chamo Ayub e eu faço a Internet funcionar interligando cidades e países. Mantenho um canal YouTube sobre a Internet, sou professor e Diretor de Tecnologia.
Riccardo Nalesso @thetechguy_it
4K Followers 990 Following Connecting Networks that Connect People👨🏼💻 #CCIE EI 58773 | #CiscoChampion '23-25 | #SDN #ACI #Python #NetworkAutomation #SDWAN
Wendell Odom @Wendellodom
17K Followers 660 Following Writer/instructor/YouTuber https://t.co/rGF3BmuysU
Dark Web Informer @DarkWebInformer
130K Followers 55 Following Providing intel from the Dark Web & Clearnet: Breaches, Ransomware, Darknet Markets, Threats & more. Follow the X Bot: @DarkWebIntelBot. https://t.co/Fi7VW9lg94
Perito Lucio @peritolucio
1 Followers 5 Following Acredito profundamente em compartilhar conhecimento para fortalecer a segurança digital.
AzAl Security @azalsecurity
3K Followers 243 Following dedicated deluge of strikes https://t.co/zgfADTtsYi
#CiscoCTF @ciscoctf
298 Followers 19 Following We are the team behind Capture The Flag 🚩 A gamified hands-on learning experience by Cisco 🕹🕹🎮
CloudShark by QA Cafe @cloudshark
3K Followers 575 Following CloudShark by QA Cafe is for teams solving network and security problems, built by experts who love packets, cybersecurity, and networking.
Oscar🇩🇴 @CCNADailyTIPS
3K Followers 375 Following Sk5DSUEtSlVOT1MsIENDTkEgUiZTLCBTZWN1cml0eSwgYW5kIFBDTlNFIENlcnRpZmllZCEgT1NDUCBuZXh0IQ==
Deirra F. @deirradecoded
34K Followers 2K Following Be Audacious. | Cybersecurity, AI, Business & Lifestyle. ☕️👩🏾💻📚🩵
Year Progress @year_progress
698K Followers 4 Following The only progress bar you'd rather see go slower (or faster?)
Devvie @DevvieBot
2K Followers 97 Following Hello, I'm Devvie, @CiscoDevNet 's mascot. I've got some fun surprises in store; follow me! #Devvie #DevvieWorldTour
WLAN Association @WLANAssociation
2K Followers 27 Following A professional association for the WLAN community defining industry best practices and quality assurance in the delivery of Wi-Fi networks.
Kevin Blackburn @ccie62000
2K Followers 559 Following CCIE RS #62000. Security TSA @ Cisco, golfer, and traveler.
Scott Lester @theITrebel
2K Followers 743 Following Ole Miss alum / CWNE #253 / ACDX #916 / Enablement Technical Marketing Engineer @ HPE Aruba Networking / Host of @the_cw_podcast / Former MFD delegate
David Coleman @mistermultipath
5K Followers 978 Following CWNE #4 - Wi-Fi technology virtuoso - Public speaker and proficient tech author - Extreme Networks, Office of the CTO
Anderson Freire @anderson_scf
92 Followers 206 Following Just a Pre-Sales Engineer and WiFi enthusiast.
Hank Preston @hfpreston
13K Followers 933 Following I’m an introverted network automation engineer. #NetDevOps by day wheel of hobbies by night. Follower of #NoMeetingThursday. he/him and I tweet my whims!
Blog CiscoRedes (aka ... @BlogCiscoRedes
300 Followers 104 Following Nosso canal onde iremos publicar todas as informações referentes ao nosso BLOG trazendo todos os tópicos sobre tecnologia. #vExpert #CiscoChampion 🇧🇷
Wi-Fi Alliance @WiFiAlliance
15K Followers 849 Following Wi-Fi CERTIFIED™ by Wi-Fi Alliance® provides assurances that Wi-Fi® enabled products interoperate and work together to deliver the best user experience.
NetDevOps Live! @netdevopslive
2K Followers 46 Following #NetDevOps Live! is a webinar and on demand show about programmability, #SDN, #NetOps, #DevNetOps, #Python, #NETCONF, #YANG, #RESTCONF and more! #Cisco #DevNet
Jamie Shoup @MsJamieShoup
5K Followers 2K Following Social Media Marketing 👩🏼💻 Tech trends | Digital innovation | Modern design | Volleyball |Indianapolis | Pugs ☺️*Views are mine*
Dave Benham @baldwifiguy
2K Followers 680 Following CCIE (Wireless) #45171. Wi-Fi and RF enthusiast, both on and off the job. My tweets don't represent anything but my own insanity. @[email protected]
Brad Johnson @BradinTN
1K Followers 911 Following Working through #CiscoISE installs. Tweets are my own. Soaking in the neon glows while hanging out in the digital snow. Mastodon: @[email protected]
Amy Renee has moved t... @amyengineer
21K Followers 5K Following All things networking & security. @amyengineer.bsky.social Sharer of knowledge, purveyor of puns, curator of amusement. Wielder of snark & sparkly bats.
Rafael Guerra @raguerra7
189 Followers 594 Following Technical Solutions Architect - Data Center & Cloud at Cisco Systems (tweets are my own)
Matt Schmitz @0x2142
1K Followers 444 Following Solutions Engineer at @Cisco - CCIE #63461 Blog: https://t.co/sxoNE7gHgA / YouTube: https://t.co/UOYMv86DKv / Mastodon: https://t.co/Zr77p1SUfZ Tweets are my own
Vasco Costa @VascoFCosta
972 Followers 1K Following husband, father of 3, #CWNE 244, CWNE Board Member, #CCNP , #CCNPW , #Ekahau Master , #CiscoChampion, boyscout, goof, martial artist, citizen of the World
Joel Sprague @JoelWSprague
843 Followers 1K Following Husband, Father, IT Zealot. CCIE #52000, Cisco Champion 2019, VMware vExpert 2019. All tweets are my own and do not reflect the opinions of my employer.
Brett Shore @BrettShore
273 Followers 452 Following Adventurer, family man, and troublemaker with a passion for learning and exploring. Tweets, likes, comments, and shenanigans are my own.
Alexandro Prado @alexandroprado
3K Followers 5K Following Microsoft Cloud Solutions Architect Azure Core
William 🇧🇷🇺�... @williamrn3
118 Followers 198 Following – CCIE Enterprise #46009 – CCIE Security #46009 – CCDE 2018::26 Crypto Lover
David Yarashus @dyarashus
3K Followers 4K Following CCIE #2292, CCDE #20120013, CISSP. Co-founder of NetCraftsmen. Tweets are my own. #CiscoChampion
Ricardo Conzatti @RicardoConzatti
1K Followers 923 Following Senior SE @ Veeam | VMCE | VCIX-DCV, VCAP-CMA, MCSE | #vExpertPRO #Blogger #Podcaster #VUG #VMUG #Community #ScriptLover | Views are mine
VMUG São Paulo @vmugsp
411 Followers 314 Following VMUG SP | Grupo de Usuários VMware São Paulo/Brasil. 🇧🇷👥🖥 @myVMUG #vmugSP #vmug011.
Caio Oliveira @virtcaio
651 Followers 207 Following Eager to learn new technologies and share my expertise (AI, Automation, Cloud, Networking). Love my family and my country 🇧🇷. Solopreneur. Tweets are mine.
Renata Correa Silva @ree_correa
29 Followers 234 Following Electrical and Network Engineering. Technology and Science Lover. These tweets are my own.
Wi-Fi NOW @wifinowevents
2K Followers 584 Following Wi Fi NOW is the world's premier Wi-Fi event, media, & advisory organisation
Paul Finlay @paulrfinlay
285 Followers 238 Following Principal Network Engineer at Aruba Networks || CWNE #110. All views are my own.
Mobility Brazil @mobilitybrazil
187 Followers 345 Following Official Twitter of the Mobility Brazil Community
WiFi Explorer @wifiexplorer
2K Followers 0 Following Scan, monitor, and troubleshoot wireless networks. 2020 Product of the Year by @thewifiawards.