#import <CoreWLAN/CoreWLAN.h>
CWInterface* wifi = [[CWWiFiClient sharedWiFiClient] interface];
NSString *securityType = [wifi security];// this is given you enum(some number) and u can do function that return the correct string with the name according this enum
это ENUM:
typedef NS_ENUM(NSInteger, CWSecurity)
{
kCWSecurityNone = 0,
kCWSecurityWEP = 1,
kCWSecurityWPAPersonal = 2,
kCWSecurityWPAPersonalMixed = 3,
kCWSecurityWPA2Personal = 4,
kCWSecurityPersonal = 5,
kCWSecurityDynamicWEP = 6,
kCWSecurityWPAEnterprise = 7,
kCWSecurityWPAEnterpriseMixed = 8,
kCWSecurityWPA2Enterprise = 9,
kCWSecurityEnterprise = 10,
kCWSecurityUnknown = NSIntegerMax,
} NS_ENUM_AVAILABLE_MAC(10_7);