Resources

Month	Conference deadlines	Typical conferences held during the month
January	CCS(1/20), ICDCS, ATC(1/15)
February	USENIX(2/4), SIGCOMM	NDSS
March	SP(3/5)
April	RAID, ESORICS, NSDI(4/10)
May	CCS(5/4), NDSS(5/22), SOSP/OSDI(5/20), ICNP(5/19)	IEEE S&P, WWW
June	SP(6/4), USENIX(6/18), ACSAC (6/16), CoNEXT(6/17)	ASIACCS, DSN, ICDCS
July	NDSS(7/31)
August	INFOCOM(8/15), ASIACCS(8/21)	USENIX Security
September	SP(9/3), NSDI(9/10)
October	USENIX(10/15), WWW(10/7)	ACM CCS, RAID
November	SOSR
December	SP(12/3), DSN(12/3), ASIACCS(12/11)	ACSAC

More CFP here and here
- Other security conferences: SecureComm, DIMVA, ASIACCS, ACNS, CSF/CSFW, NSPW, WiSec , Crypto, Eurocrypt, Asiacrypt Conferences
- Networking: ACM SIGCOMM, CoNEXT, SOSR, HotNets , IEEE INFOCOM , ICNP , SIGMETRICS , ICDCS , IMC,
- ACM MOBICOM , MOBIHOC , MOBISYS , SenSys
- System: SOSP , OSDI , ATC, NSDI
Some security resources: public pcap files, malware pcap traces, CIC security dataset, Contagio malware samples, …
Some other useful links