diff --git a/admin/logs.go b/admin/logs.go
index 446e8fb..014ba39 100644
--- a/admin/logs.go
+++ b/admin/logs.go
@@ -44,10 +44,69 @@ type AuthLogResult struct {
 }
 
 // An AuthLog retrieved from https://duo.com/docs/adminapi#authentication-logs
-// TODO: @Duo update this to be a struct based on the returned JSON structure of an authentication log.
-type AuthLog map[string]interface{}
+type AuthLog struct {
+	AccessDevice AccessDevice `json:"access_device"`
+	Alias        string       `json:"alias"`
+	Application  Application  `json:"application"`
+	AuthDevice   AuthDevice   `json:"auth_device"`
+	Email        string       `json:"email"`
+	EventType    string       `json:"event_type"`
+	Factor       string       `json:"factor"`
+	ISOTimestamp time.Time    `json:"isotimestamp"`
+	OODSoftware  string       `json:"ood_software"`
+	Reason       string       `json:"reason"`
+	Result       string       `json:"result"`
+	Timestamp    int64        `json:"timestamp"`
+	TxID         string       `json:"txid"`
+	User         UserV2       `json:"user"`
+}
+
+// AccessDevice models a device that user uses to authenticate themselves.
+type AccessDevice struct {
+	Browser             string   `json:"browser"`
+	BrowserVersion      string   `json:"browser_version"`
+	FlashVersion        string   `json:"flash_version"`
+	Hostname            string   `json:"hostname"`
+	IP                  string   `json:"ip"`
+	IsEncryptionEnabled string   `json:"is_encryption_enabled"`
+	IsFirewallEnabled   string   `json:"is_firewall_enabled"`
+	IsPasswordSet       string   `json:"is_password_set"`
+	JavaVersion         string   `json:"java_version"`
+	Location            Location `json:"location"`
+	OS                  string   `json:"os"`
+	OSVersion           string   `json:"os_version"`
+	SecurityAgents      string   `json:"security_agents"`
+}
+
+// Application models information about the accessed application.
+type Application struct {
+	Key  string
+	Name string
+}
+
+// Location represents a location where the user authenticates themselves.
+type Location struct {
+	City    string `json:"city"`
+	Country string `json:"country"`
+	State   string `json:"state"`
+}
+
+// AuthDevice models information about the device used to approve or
+// deny authentication.
+type AuthDevice struct {
+	IP       string   `json:"ip"`
+	Location Location `json:"location"`
+	Name     string   `json:"name"`
+}
+
+// UserV2 models information about the authenticating user.
+type UserV2 struct {
+	Groups []string `json:"groups"`
+	Key    string   `json:"key"`
+	Name   string   `json:"name"`
+}
 
-// An AuthLogList holds retreived logs and V2 metadata used for pagination.
+// An AuthLogList holds retrieved logs and V2 metadata used for pagination.
 type AuthLogList struct {
 	Metadata LogListV2Metadata `json:"metadata"`
 	Logs     []AuthLog         `json:"authlogs"`
diff --git a/admin/logs_test.go b/admin/logs_test.go
index 31fb766..cae87ae 100644
--- a/admin/logs_test.go
+++ b/admin/logs_test.go
@@ -59,6 +59,9 @@ const getAuthLogsResponse = `{
                     "flash_version": "uninstalled",
                     "hostname": "null",
                     "ip": "169.232.89.219",
+                    "is_encryption_enabled": "true",
+                    "is_firewall_enabled": "true",
+                    "is_password_set": "true",
                     "java_version": "uninstalled",
                     "location": {
                         "city": "Ann Arbor",
@@ -66,8 +69,10 @@ const getAuthLogsResponse = `{
                         "state": "Michigan"
                     },
                     "os": "Mac OS X",
-                    "os_version": "10.14.1"
+                    "os_version": "10.14.1",
+                    "security_agents": "unknown"
                 },
+                "alias": "",
                 "application": {
                     "key": "DIY231J8BR23QK4UKBY8",
                     "name": "Microsoft Azure Active Directory"
@@ -81,14 +86,21 @@ const getAuthLogsResponse = `{
                     },
                     "name": "My iPhone X (734-555-2342)"
                 },
+                "email": "narroway@example.com",
                 "event_type": "authentication",
                 "factor": "duo_push",
+                "isotimestamp": "2020-02-13T18:56:20.351346+00:00",
+                "ood_software": "null",
                 "reason": "user_approved",
                 "result": "success",
-                "timestamp": 1532951962,
+                "timestamp": 1581620180,
                 "trusted_endpoint_status": "not trusted",
                 "txid": "340a23e3-23f3-23c1-87dc-1491a23dfdbb",
                 "user": {
+                    "groups": [
+                        "Duo Users",
+                        "CorpHQ Users"
+                    ],
                     "key": "DU3KC77WJ06Y5HIV7XKQ",
                     "name": "narroway@example.com"
                 }
@@ -134,7 +146,7 @@ func TestGetAuthLogs(t *testing.T) {
 	if length := len(result.Response.Logs); length != 1 {
 		t.Errorf("Expected 1 log, but got %d", length)
 	}
-	if txid := result.Response.Logs[0]["txid"]; txid != "340a23e3-23f3-23c1-87dc-1491a23dfdbb" {
+	if txid := result.Response.Logs[0].TxID; txid != "340a23e3-23f3-23c1-87dc-1491a23dfdbb" {
 		t.Errorf("Expected txid '340a23e3-23f3-23c1-87dc-1491a23dfdbb', but got %v", txid)
 	}
 	if next := result.Response.Metadata.GetNextOffset(); next == nil {